Zen (Chinese: ?; pinyin: ; Korean: ?, translit. Seon) is a school of Mahayana Buddhism that originated in China during the Tang dynasty as Chan Buddhism. It was strongly influenced by Taoism, and developed as a distinct school of Chinese Buddhism. From China, Chan Buddhism spread south to Vietnam which became Vietnamese Thi?n, northeast to Korea and east to Japan, where it became known as Seon Buddhism and Japanese Zen, respectively.
The term Zen is derived from the Japanese pronunciation of the Middle Chinese word ? (Chan) which traces its roots to the Indian practice of Dhy?na ("meditation").[note 1] Zen emphasizes rigorous self-control, meditation-practice, insight into Buddha-nature, and the personal expression of this insight in daily life, especially for the benefit of others. As such, it de-emphasizes mere knowledge of sutras and doctrine and favors direct understanding through zazen and interaction with an accomplished teacher.
The teachings of Zen include various sources of Mahayana thought, especially Yogachara, the Tath?gatagarbha s?tras and the Huayan school, with their emphasis on Buddha-nature, totality, and the Bodhisattva-ideal. The Prajñ?p?ramit? literature and, to a lesser extent, Madhyamaka have also been influential in the shaping of the "paradoxical language" of the Zen-tradition.
The word Zen is derived from the Japanese pronunciation of the Middle Chinese word ? (d?jen) (pinyin: Chán), which in turn is derived from the Sanskrit word dhy?na ( ), which can be approximately translated as "absorption" or "meditative state".
During sitting meditation, practitioners usually assume a position such as the lotus position, half-lotus, Burmese, or yoga postures, using the dhy?na mudr?. To regulate the mind, awareness is directed towards counting or watching the breath or by bringing that awareness to the energy center below the navel (see also ?n?p?nasati).[web 1] Often, a square or round cushion placed on a padded mat is used to sit on; in some other cases, a chair may be used. This practice may simply be called sitting dhy?na, which is zuòchán () in Chinese, and zazen () in Japanese, jwaseon () in Korean.
In the S?t? school of Zen, meditation with no objects, anchors, or content, is the primary form of practice. The meditator strives to be aware of the stream of thoughts, allowing them to arise and pass away without interference. Considerable textual, philosophical, and phenomenological justification of this practice can be found throughout D?gen's Sh?b?genz?, as for example in the "Principles of Zazen"[web 2] and the "Universally Recommended Instructions for Zazen".[web 3] In the Japanese language, this practice is called Shikantaza.
Intensive group meditation may be practiced occasionally in some temples. In the Japanese language, this practice is called Sesshin. While the daily routine may require monks to meditate for several hours each day, during the intensive period they devote themselves almost exclusively to the practice of sitting meditation. The numerous 30-50 minute long meditation periods are interwoven with rest breaks, meals, and short periods of work that are performed with the same mindfulness; nightly sleep is kept to seven hours or less. In modern Buddhist practice in Japan, Taiwan, and the West, lay students often attend these intensive practice sessions, which are typically 1, 3, 5, or 7 days in length. These are held at many Zen centers, especially in commemoration of the Buddha's attainment of Anuttar? Samyaksa?bodhi. One distinctive aspect of Zen meditation in groups is the use of a kyosaku, a flat, wooden slat used to strike meditators with the intention of keeping them focused and awake.
At the beginning of the Sòng dynasty, practice with the k?an method became popular, whereas others practiced "silent illumination." This became the source of some differences in practice between the Línjì and Cáodòng schools.
A k?an, literally "public case", is a story or dialogue, describing an interaction between a Zen master and a student. These anecdotes give a demonstration of the master's insight. Koans emphasize the non-conceptional insight that the Buddhist teachings are pointing to. Koans can be used to provoke the "great doubt", and test a student's progress in Zen practice.
K?an-inquiry may be practiced during zazen (sitting meditation), kinhin (walking meditation), and throughout all the activities of daily life. K?an practice is particularly emphasized by the Japanese Rinzai school, but it also occurs in other schools or branches of Zen depending on the teaching line.
The Zen student's mastery of a given k?an is presented to the teacher in a private interview (referred to in Japanese as dokusan (), daisan (), or sanzen ()). While there is no unique answer to a k?an, practitioners are expected to demonstrate their understanding of the k?an and of Zen through their responses. The teacher may approve or disapprove of the answer and guide the student in the right direction. The interaction with a Zen teacher is central in Zen, but makes Zen practice also vulnerable to misunderstanding and exploitation.
A practice in many Zen monasteries and centers is a daily liturgy service. Practitioners chant major sutras such as the Heart Sutra, chapter 25 of the Lotus Sutra (often called the "Avalokite?vara Sutra"), Song of the Precious Mirror Samadhi, the N?lakaha Dh?ra, and other minor mantras.
The butsudan is the altar in a monastery where offerings are made to the images of the Buddha or bodhisattvas. The same term is also used in Japanese homes for the altar where one prays to and communicates with deceased family members. As such, reciting liturgy in Zen can be seen as a means to connect with the Bodhisattvas of the past. Liturgy is often used during funerals, memorials, and other special events as means to invoke the aid of supernatural powers.
Chanting usually centers on major bodhisattvas like Avalokite?vara (see Guanyin) and Manjushri. According to Mahayana Buddhism, bodhisattvas are beings who have taken vows to remain in sa?s?ra to help all beings achieve liberation from it. Since the Zen practitioner's aim is to walk the bodhisattva path, chanting can be used as a means to connect with these beings and realize this ideal within oneself.
Though in western Zen the emphasis is on zen-meditation, and the application of Zen-teachings in daily life, Japanese Zen also serves a function in public religion. Funerals play an important role as a point of contact between the monks and the laity. Statistics published by the S?t? school state that 80 percent of S?t? laymen visit their temple only for reasons having to do with funerals and death. Seventeen percent visit for spiritual reasons and 3 percent visit a Zen priest at a time of personal trouble or crisis.
Though Zen-narrative states that it is a "special transmission outside scriptures" which "did not stand upon words", Zen does have a rich doctrinal background, which is firmly grounded in the Buddhist tradition. It was thoroughly influenced by the Chinese understanding of Yogacara and the Buddha-nature doctrine, Zen integrates both Yogacara and Madhyamaka, and the influence of Madhyamaka can be discerned in the stress on non-conceptual insight and the paradoxical language of the koans.[web 4][note 2] Most essential are "the most fundamental teaching that we are already originally enlightened", and the Bodhisattva ideal, which supplements insight with Karu, compassion with all sentient beings.
To point out 'essential Zen-teachings' is almost impossible, given the variety of schools, the extended history of 1500 years, and the emphasis on suchness, reality just-as-it-is, which has to be expressed in daily life, not in words. But common to most schools and teachings is this emphasis on suchness and Buddha-nature, the Bodhisattva-ideal, and the priority of zazen.
Zen teachings can be likened to "the finger pointing at the moon". Zen teachings point to the moon, awakening, "a realization of the unimpeded interpenetration of the dharmadhatu". But the Zen-tradition also warns against taking its teachings, the pointing finger, to be this insight itself.[web 5][web 6]
The various traditions lay various emphases in their teachings and practices:
There are two different ways of understanding and actually practicing Zen. These two different ways are termed in Chinese pen chueh and shih-chueh respectively. The term pen chueh refers to the belief that one's mind is from the beginning of time fully enlightened, while shih-chueh refers to the belief that at some point in time we pass from imprisonment in ignorance and delusion to a true vision of Zen realization: "Our enlightenment is timeless, yet our realization of it occurs in time." According to this belief experiencing a moment of awakening in this life is of central importance.
The Rinzai school is the Japanese lineage of the Chinese Linji school, which was founded during the Tang dynasty by Linji Yixuan.The Rinzai school emphasizes kensho, insight into one's true nature. This is followed by so-called post-satori practice, further practice to attain Buddhahood.
Other Zen-teachers have also expressed sudden insight followed by gradual cultivation. Jinul, a 12th-century Korean Seon master, followed Zongmi, and also emphasized that insight into our true nature is sudden, but is to be followed by practice to ripen the insight and attain full buddhahood. This is also the standpoint of the contemporary Sanbo Kyodan, according to whom kensh? is at the start of the path to full enlightenment.
To attain this primary insight and to deepen it, zazen and k?an-study is deemed essential. This trajectory of initial insight followed by a gradual deepening and ripening is expressed by Linji in his Three Mysterious Gates and Hakuin Ekaku's Four Ways of Knowing. Another example of depiction of stages on the path are the Ten Bulls, which detail the steps on the path.
S?t? is the Japanese line of the Chinese Caodong school, which was founded during the Tang Dynasty by Dongshan Liangjie. The S?t?-school has de-emphasized k?ans since Gent? Sokuch? (circa 1800), and instead emphasized shikantaza. Dogen, the founder of Soto in Japan, emphasised that practice and awakening cannot be separated. By practicing shikantaza, attainment and Buddhahood are already being expressed. For Dogen, zazen, or shikantaza, is the essence of Buddhist practice. Gradual cultivation was also recognized by Dongshan Liangjie.[web 7]
Contrary to the popular image, literature does play a role in the Zen-training. Zen is deeply rooted in the teachings and doctrines of Mah?y?na Buddhism.Unsui, Zen-monks, "are expected to become familiar with the classics of the Zen canon". A review of the early historical documents and literature of early Zen masters clearly reveals that they were well versed in numerous Mah?y?na Buddhist s?tras,[note 3][note 4][note 5] including Madhyamaka. Especially the Lotus Sutra played a large role in the development of East Asian Buddhism, including Zen.[web 8]
Nevertheless, Zen is often pictured as anti-intellectual. This picture of Zen emerged during the Song Dynasty (960-1297), when Chán became the dominant form of Buddhism in China, and gained great popularity among the educated and literary classes of Chinese society. The use of koans, which are highly stylized literary texts, reflects this popularity among the higher classes. The famous saying "do not establish words and letters", attributed in this period to Bodhidharma,
...was taken not as a denial of the recorded words of the Buddha or the doctrinal elaborations by learned monks, but as a warning to those who had become confused about the relationship between Buddhist teaching as a guide to the truth and mistook it for the truth itself.
What the Zen tradition emphasizes is that the enlightenment of the Buddha came not through conceptualization, but rather through direct insight. But direct insight has to be supported by study and understanding (hori) of the Buddhist teachings and texts.[note 6] Intellectual understanding without practice is called yako-zen, "wild fox Zen", but "one who has only experience without intellectual understanding is a zen temma, 'Zen devil'".
The early Buddhist schools in China were each based on a specific sutra. At the beginning of the Tang Dynasty, by the time of the Fifth Patriarch Hongren (601-674), the Zen school became established as a separate school of Buddhism. It had to develop a doctrinal tradition of its own to ascertain its position, and to ground its teachings in a specific sutra. Various sutras were used for this, even before the time of Hongren: the ?r?m?l?dev? S?tra (Huike),Awakening of Faith (Daoxin), the Lankavatara Sutra (East Mountain School), the Diamond Sutra (Shenhui), and the Platform Sutra. None of these sutras was decisive though, since the school drew inspiration from a variety of sources. Subsequently, the Zen tradition produced a rich corpus of written literature which has become a part of its practice and teaching. Other influential sutras are the Vimalakirti Sutra,Avatamsaka Sutra, the Shurangama Sutra, and the Mahaparinirvana Sutra.
The Zen-tradition developed a rich textual tradition, based on the interpretation of the Buddhist teachings and the recorded sayings of Zen-masters. Important texts are the Platform Sutra (8th century), attributed to Huineng ; the Chán transmission records, teng-lu, such as The Records of the Transmission of the Lamp (Ching-te ch'uan-teng lu), compiled by Tao-yün and published in 1004; the "yü-lü" genre consisting of the recorded sayings of the masters, and the encounter dialogues; the koan-collections, such as the "Gateless Gate" and the "Blue Cliff Record".
Religion is not only an individual matter, but "also a collective endeavour". Though individual experience and the iconoclastic picture of Zen are emphasised in the Western world, the Zen-tradition is maintained and transferred by a high degree of institutionalisation and hierarchy. In Japan, modernity has led to criticism of the formal system and the commencement of lay-oriented Zen-schools such as the Sanbo Kyodan and the Ningen Zen Kyodan.[web 9] How to organize the continuity of the Zen-tradition in the West, constraining charismatic authority and the derailment it may bring on the one hand, and maintaining the legitimacy and authority by limiting the number of authorized teachers on the other hand, is a challenge for the developing Zen-communities in the West.
The Chán of the Tang Dynasty, especially that of Mazu and Linji with its emphasis on "shock techniques", in retrospect was seen as a golden age of Chán. This picture has gained great popularity in the West in the 20th century, especially due to the influence of D.T. Suzuki, and further popularized by Hakuun Yasutani and the Sanbo Kyodan. This picture has been challenged, and complemented, since the 1970s by modern scientific research on Zen.
Modern scientific research on the history of Zen discerns three main narratives concerning Zen, its history and its teachings: Traditional Zen Narrative (TZN),[web 10] Buddhist Modernism (BM), Historical and Cultural Criticism (HCC). An external narrative is Nondualism, which claims Zen to be a token of a universal nondualist essence of religions.
The history of Chán in China can be divided in several periods. Zen as we know it today is the result of a long history, with many changes and contingent factors. Each period had different types of Zen, some of which remained influential while others vanished.
Ferguson distinguishes three periods from the 5th century into the 13th century:
Neither Ferguson nor McRae give a periodisation for Chinese Chán following the Song-dynasty, though McRae mentions
The practice of Buddhist meditation was practiced in China centuries before the rise of Chán by people such as An Shigao (c. 148-180 CE) and his school who translated various meditation treatises (Chán-jing, ). Other important translators of meditation texts were Kum?raj?va (334-413 CE) and Buddhabhadra. These Chinese translations of mostly Indian Yogacara meditation manuals were the basis for the meditation techniques of Chinese Chan.[web 11]
When Buddhism came to China from Gandhara (now Afghanistan) and India, it was initially adapted to the Chinese culture and understanding. Buddhism was exposed to Confucianist and Taoist influences.[note 9] Goddard quotes D.T. Suzuki,[note 10] calling Chán a "natural evolution of Buddhism under Taoist conditions." Buddhism was first identified to be "a barbarian variant of Taoism":
Judging from the reception by the Han of the Hinayana works and from the early commentaries, it appears that Buddhism was being perceived and digested through the medium of religious Daoism (Taoism). Buddha was seen as a foreign immortal who had achieved some form of Daoist nondeath. The Buddhists' mindfulness of the breath was regarded as an extension of Daoist breathing exercises.
Taoist terminology was used to express Buddhist doctrines in the oldest translations of Buddhist texts, a practice termed ko-i, "matching the concepts", while the emerging Chinese Buddhism had to compete with Taoism and Confucianism.
The first Buddhist recruits in China were Taoists. They developed high esteem for the newly introduced Buddhist meditational techniques, and blended them with Taoist meditation. Representatives of early Chinese Buddhism like Sengzhao and Tao Sheng were deeply influenced by the Taoist keystone works of Laozi and Zhuangzi. Against this background, especially the Taoist concept of naturalness was inherited by the early Chán disciples: they equated - to some extent - the ineffable Tao and Buddha-nature, and thus, rather than feeling bound to the abstract "wisdom of the s?tras", emphasized Buddha-nature to be found in "everyday" human life, just as the Tao.
In addition to Taoist ideas, also Neo-Taoist concepts were taken over in Chinese Buddhism. Concepts such as "T'i -yung" (Essence and Function) and "Li-shih" (Noumenon and Phenomenon) were first taken over by Hua-yen Buddhism, which consequently influenced Chán deeply.
One point of confusion for Chinese Buddhism was the two truths doctrine. Chinese thinking took this to refer to two ontological truths: reality exists on two levels, a relative level and an absolute level. Taoists at first misunderstood sunyata to be akin to the Taoist non-being. In Madhyamaka the two truths are two epistemological truths: two different ways to look at reality. Based on their understanding of the Mahayana Mahaparinirvana Sutra the Chinese supposed that the teaching of the Buddha-nature was, as stated by that sutra, the final Buddhist teaching, and that there is an essential truth above sunyata and the two truths.
Traditionally the origin of Chán in China is credited to Bodhidharma, an Iranian language speaking Central Asian monk or an Indian monk. The story of his life, and of the Six Patriarchs, was constructed during the Tang Dynasty to lend credibility to the growing Chán-school.
Bodhidharma is recorded as having come into China during the time of Southern and Northern Dynasties to teach a "special transmission outside scriptures" which "did not stand upon words". Throughout Buddhist art, Bodhidharma is depicted as a rather ill-tempered, profusely bearded and wide-eyed barbarian. He is referred as "The Blue-Eyed Barbarian" (:Bìy?n hú) in Chinese Chan texts.[web 12] Only scarce historical information is available about him, but his hagiography developed when the Chan tradition grew stronger and gained prominence in the early 8th century. By this time a lineage of the six ancestral founders of Chán in China was developed. The short text Two Entrances and Four Acts, written by T'an-lín (; 506-574), contains teachings which are attributed to Bodhidharma. The text is known from the Dunhuang-manuscripts.
The actual origins of Chán may lie in ascetic practitioners of Buddhism, who found refuge in forests and mountains.Huike, "a dhuta (extreme ascetic) who schooled others" and used the Srimala Sutra, one of the Tath?gatagarbha s?tras , figures in the stories about Bodhidharma. Huike is regarded as the second Chán patriarch, appointed by Bodhidharma to succeed him. One of Huike's students, Sengcan, to whom is ascribed the Xinxin Ming, is regarded as the third patriarch.
With the fourth patriarch, Daoxin ( 580-651), Chán began to take shape as a distinct school. The link between Huike and Sengcan, and the fourth patriarch Daoxin "is far from clear and remains tenuous". With Daoxin and his successor, the fifth patriarch Hongren ( 601-674), there emerged a new style of teaching, which was inspired by the Chinese text Awakening of Faith in the Mahayana. A large group of students gathered at a permanent residence, and extreme ascetism became outdated. The period of Daoxin and Hongren came to be called the East Mountain Teaching, due to the location of the residence of Hongren at Huamgmei.
The term "East Mountain Teaching" was used by Shenxiu ( 606?-706), the most important successor to Hongren. By this time the group had grown into a matured congregation which became significant enough to be reckoned with by the ruling forces. In 701 Shenxiu was invited to the Imperial Court by Empress Wu, who paid him imperial reverence. This gave his school the support and the legitimation of the imperial court. The school was typified by a "loose practice," aiming to make meditation accessible to a larger audience. Shenxiu used short formulas extracted from various sutras to package the teachings, a style which is also used in the Platform Sutra. Members of the "East Mountain Teaching" shifted the alleged scriptural basis, realizing that the Awwakening of Faith is not a sutra but a sastra, commentary, and fabricated a lineage of Lankavatara Sutra masters, as being the sutra that preluded the Awakening of Faith.
This growing influence, and the need to be supported by patrons, is reflected in the campaign of Shenhui (670-762) for imperial patronage. Shenhui was a successor to Hui-neng (; 638-713), a minor student of Hongren. At 731 Shenhui started to propagate that Huineng was the real successor of Hongren's, instead of the then publicly recognized successor Shenxiu. A dramatic story of Huineng's life was created, as narrated in the Platform Sutra, which tells that there was a contest for the transmission of the title of patriarch. After being chosen by Hongren, the fifth patriarch, Huineng had to flee by night to Nanhua Temple in the south to avoid the wrath of Hongren's jealous senior disciples. The Diamond Sutra was incorporated into the story as being the favorite sutra of Huineng, thereby shifting the alleged textual basis of the Chán-school again. Shenhui succeeded in his campaign, and Huineng came to be regarded as the Sixth Patriarch. Shenxiu's Northern School was denigrated as "gradual", in opposition to the self-acclaimed "sudden" approach of Shenhui's Southern School. Shenhui's story was so influential that all surviving schools regard Huineng as their ancestor. 
The An Lushan Rebellion (755-763) led to a loss of control by the Tang-dynasty, and changed the Chan scene again. Metropolitan Chan began to lose its status, while "other schools were arising in out-lying areas controlled by warlords. These are the forerunners of the Chan we know today."
The most important of these schools is the Hongzhou school () of Mazu, to which also belong Shitou, Baizhang, Huangbo and Linji. This school became the archetypal expression of Zen, with its emphasis on the personal expression of insight, and its rejection of positive statements of this insight. Shitou is regarded as the Patriarch of Caodong (Jp. S?t?), while Linji is regarded as the founder of Rinzai-Zen.
During 845-846 Emperor Wuzong persecuted the Buddhist schools in China. This persecution was devastating for metropolitan Chan, but the Chan school of Mazu and his likes survived, and took a leading role in the Chan of the later Tang.
This surviving rural Chan developed into the Five Houses of Chán (Ch. ) of Zen, or five "schools". These were not originally regarded as "schools" or "sects", but historically they have come to be understood that way. Most Zen lineages throughout Asia and the rest of the world originally grew from or were heavily influenced by the original five houses of Zen.
After the fall of the Tang Dynasty, China was without effective central control during the Five Dynasties and Ten Kingdoms Period. China was divided into several autonomous regions. Support for Buddhism was limited to a few areas. The Hua-yen and T'ient-tai schools suffered from the changing circumstances, since they had depended on imperial support. The collapse of T'ang society also deprived the aristocratic classes of wealth and influence, which meant a further drawback for Buddhism. Shenxiu's Northern School and Henshui's Southern School didn't survive the changing circumstances. Nevertheless, chán emerged as the dominant stream within Chinese Buddhism, but with various schools developing various emphases in their teachings, due to the regional orientation of the period. The Fayan school, named after Fa-yen Wen-i (885-958) became the dominant school in the southern kingdoms of Nan-T'ang (Jiangxi, Chiang-hsi) and Wuyue (Che-chiang).
The Five Dynasties and Ten Kingdoms Period was followed by the Song Dynasty, which established a strong central government. During the Song Dynasty, Chán (?) was used by the government to strengthen its control over the country, and Chán grew to become the largest sect in Chinese Buddhism. An ideal picture of the Chán of the Tang period was produced, which served the legacy of this newly acquired status, and the period of the Tang Dynasty came to be regarded as the "golden age" of Chan. With the establishment of the Wu-shan (Gozan) system during the Southern Sung, the Chinese bureaucratic system entered into Zen temples throughout the country, and a highly organized system of temple rank and administration developed.
The Linji school became the dominant school within Chán, due to support from literati and the court. Before the Song Dynasty, the Linji-school is rather obscure, and very little is known about its early history. The first mention of Linji is in the Zutang ji, compiled in 952, 86 years after Linji's death. But the Zutang ji pictures the Xuefeng Yicun lineage as heir to the legacy of Mazu and the Hongzhou-school. According to Welter, the real founder of the Linji-school was Shoushan (or Baoying) Shengnian (?)(926-993), a fourth generation dharma-heir of Linji. The Tiansheng Guangdeng lu (), "Tiansheng Era Expanded Lamp Record", compiled by the official Li Zunxu ()(988-1038) confirms the status of Shoushan Shengnian, but also pictures Linji as a major Chan patriarch and heir to the Mazu, displacing the prominence of the Fayan-lineage. It also established the slogan of "a special transmission outside the teaching", supporting the Linji-school claim of "Chan as separate from and superior to all other Buddhist teachings".
During the 12th century, a clear difference between the Linji and the Caodong schools emerged. The two schools were competing for support of the literati, who became more powerful when the Song-government started to limit their influence on society. Hongzhi Zhengjue (1091-1157) of the Caodong-school emphasized silent illumination or shikantaza as a means for solitary practice, which could be undertaken by lay-followers. Dahui Zonggao (1089-1163) introduced k'an-hua practice, "observing the word-head", as a means of solitary practice.
During the Song, both schools were exported to Japan, where they eventually became two clearly distinguished schools or "sects".
This was different from China, where the Buddhist schools tended to coalesce into a syncretic Chinese Buddhist school.
The Yuan Dynasty was the empire established by Kublai Khan, the leader of Mongolian Borjigin clan, after Mongol conquered the Jin and the Southern Song dynasty in China. Chán-teachings started to be mixed with Pure Land teachings, as in the teachings of Zhongfeng Mingben (1263-1323).
Chán Buddhism enjoyed something of a revival in the Ming Dynasty with teachers such as Hanshan Deqing (?), who wrote and taught extensively on both Chán and Pure Land Buddhism; Miyun Yuanwu (?), who came to be seen posthumously as the first patriarch of the ?baku Zen school; as well as Yunqi Zhuhong (?) and Ouyi Zhixu (?).
In the beginning of the Qing Dynasty Chán was "reinvented", by the "revival of beating and shouting practices" by Miyun Yuanwu (1566-1642), and the publication of the Wudeng yantong ("The strict transmission of the five Chan schools") by Feiyin Tongrong's (1593-1662), a dharma heir of Miyun Yuanwu. The book placed self-proclaimed Chan monks without proper Dharma transmission in the category of "lineage unknown" (sifa weixiang), thereby excluding several prominent Caodong-monks.
After further centuries of decline during the Qing Dynasty (1644-1912), Chán was revived again in the early 20th century by Hsu Yun () (1840-1959), a well-known figure of 20th-century Chinese Buddhism. Many Chán teachers today trace their lineage back to Hsu Yun, including Sheng-yen () and Hsuan Hua (), who have propagated Chán in the West where it has grown steadily through the 20th and 21st centuries.
Chán was repressed in China during the 1960s in the Cultural Revolution, but subsequently has been re-asserting itself on the mainland, and has a significant following in Taiwan and Hong Kong as well as among Overseas Chinese.
According to traditional accounts of Vietnam, in 580 an Indian monk named Vinitaruci (Vietnamese: Tì-ni-?a-l?u-chi) travelled to Vietnam after completing his studies with Sengcan, the third patriarch of Chinese Chán. This, then, would be the first appearance of Vietnamese Thi?n Buddhism. Other early Vietnamese Chán schools included the Vô Ngôn Thông, which was associated with the teaching of Mazu, and the Th?o ng, which incorporated nianfo chanting techniques; both were founded by Chinese monks.
Seon was gradually transmitted into Korea during the late Silla period (7th through 9th centuries) as Korean monks of predominantly Hwaeom () and Consciousness-only () background began to travel to China to learn the newly developing tradition. Seon received its most significant impetus and consolidation from the Goryeo monk Jinul () (1158-1210), who established a reform movement and introduced koan practice to Korea. Jinul established the Songgwangsa () as a new center of pure practice.
Zen was not introduced as a separate school until the 12th century, when My?an Eisai traveled to China and returned to establish a Linji lineage, which eventually perished.[web 13] Decades later, Nanpo Sh?my? (?) (1235-1308) also studied Linji teachings in China before founding the Japanese Otokan lineage, the most influential and only surviving lineage of Rinzai in Japan.[web 13] In 1215, D?gen, a younger contemporary of Eisai's, journeyed to China himself, where he became a disciple of the Caodong master Tiantong Rujing. After his return, D?gen established the S?t? school, the Japanese branch of Caodong.
The three traditional schools of Zen in contemporary Japan are the S?t? (), Rinzai (), and ?baku (). Of these, S?t? is the largest, and ?baku the smallest, with Rinzai in the middle. These schools are further divided into subschools by head temple, with two head temples for S?t? (S?ji-ji and Eihei-ji, with S?ji-ji having a much larger network), fourteen head temples for Rinzai, and one head temple (Manpuku-ji) for ?baku, for a total of 17 head temples. The Rinzai head temples, which are most numerous, have substantial overlap with the traditional Five Mountain System, and include Myoshin-ji, Nanzen-ji, Tenry?-ji, Daitoku-ji, and Tofuku-ji, among others.
Besides these traditional organizations, there are modern Zen organisations which have especially attracted Western lay followers, namely the Sanbo Kyodan and the FAS Society.
Although it is difficult to trace the precise moment when the West first became aware of Zen as a distinct form of Buddhism, the visit of Soyen Shaku, a Japanese Zen monk, to Chicago during the World Parliament of Religions in 1893 is often pointed to as an event that enhanced the profile of Zen in the Western world. It was during the late 1950s and the early 1960s that the number of Westerners other than the descendants of Asian immigrants who were pursuing a serious interest in Zen began to reach a significant level. Japanese Zen has gained the greatest popularity in the West. The various books on Zen by Reginald Horace Blyth, Alan Watts, Philip Kapleau and D. T. Suzuki published between 1950 and 1975, contributed to this growing interest in Zen in the West, as did the interest on the part of beat poets such as Jack Kerouac, Allen Ginsberg and Gary Snyder. In 1958, the literary magazine Chicago Review played a significant role in introducing Zen to the American literary community when it published a special issue on Zen featuring the aforementioned beat poets and works in translation.
Formation of Chán in Tang & Song China
Orientalism and East-West interchange