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
Zen center Zen center The phrase Zen center was coined by American students of Shunryu Suzuki in the mid-twentieth century, and the San Francisco Zen Center became the first Zen center, incorporating in 1962. Neither temples nor monasteries (although at times operating such facilities), Zen centers occupy a unique place in the historical development of Zen Buddhism and of Buddhism in the United States. As Zen practice has expanded throughout the United States over the last fifty years, the variety of Zen centers has increased. While some are now the homes of wealthy communities in major cities (such as Zen Center of