Buddhism Zen Buddhism is divided into two main schools: Rinzai (臨済宗) and Sōtō (曹洞宗), the former greatly favouring the use in meditation on the koan (公案, a meditative riddle or puzzle) as a device for spiritual break-through, and the latter (while certainly employing koans) focusing more on "shikantaza" or "just sitting". Zen Buddhism is primarily found in Japan, with some presence in South Korea and Vietnam. The scholars of Japanese Soto Zen tradition in recent times have critiqued the mainstream Japanese Buddhism for "dhatu-vada", that is assuming things have substantiality, a view they assert to be non-Buddhist and "out of tune
Zen lineage charts Center, which along with its affiliate temples, comprises one of the most influential Zen organizations in the United States. A book of his teachings, "Zen Mind, Beginner's Mind", is one of the most popular books on Zen and Buddhism in the West. was a Sōtō Rōshi, the founder of the Sanbo Kyodan Zen Buddhist organization. The Sanbõ Kyõdan incorporates Rinzai Kōan study as well as much of Soto tradition, a style Yasutani had learned from his teacher Harada Daiun Sogaku. As founder of the Sanbo Kyodan, and teacher of Taizan Maezumi, Yasutani has been one of the most influential persons