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 Rosen Takashina Roshi. In the 90s, there was an a rise in interest in Tibetan Buddhism, and other forms of Asian Buddhism such as Thai, Chinese, Korean and Vietnamese traditions are also present in the country. The first Brazilian Tibetan Buddhist center, the Tarthang Tulku Nyingma Center, was founded in 1988 in São Paulo. In other Latin American countries such as Argentina and Peru, there was also the introduction of Buddhism through immigration and conversion, though populations remain small (20,000 in Argentina in 2012). Japanese Zen and Tibetan Buddhism has been especially influential in these countries in the post-war 20th