Dhyāna in Buddhism 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 kōan is presented to the teacher in a private interview (referred to in Japanese as "dokusan" (独参), "daisan" (代参), or "sanzen" (参禅)). While there is no unique answer to a kōan, practitioners are expected to demonstrate their understanding of the kōan 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
Buddhism in the West the popular Vietnamese Buddhist teacher and peace activist Thích Nhất Hạnh founded the Plum Village Monastery in Dordogne, France which, along with his hundreds of publications, has helped spread interest in Engaged Buddhism and Vietnamese Thiền (Zen). The sixties counterculture had already established an interest in Tibetan Buddhism, through Timothy Leary's publication of an adaptation of the so-called Tibetan Book of the Dead under the title The Psychedelic Experience. Since the 1970s, interest in Tibetan Buddhism also grew dramatically, especially due to the arrival of Tibetan lamas in the West after the Chinese occupation of Tibet and the creation of