Dhyāna in Buddhism "silent illumination." This became the source of some differences in practice between the Línjì and Cáodòng schools. A kōan, 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. Kōan-inquiry may be practiced during zazen (sitting meditation), kinhin (walking meditation), and throughout all the activities of daily life. Kōan practice is particularly emphasized by
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