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
Korean Buddhism distinct form. As it now stands, Korean Buddhism consists mostly of the Seon lineage, primarily represented by the Jogye and Taego Orders. The Korean Seon has a strong relationship with other Mahayana traditions that bear the imprint of Chan teachings as well as the closely related Zen. Other sects, such as the modern revival of the Cheontae lineage, the Jingak Order (, a modern esoteric sect), and the newly formed Won, have also attracted sizable followings. Korean Buddhism has also contributed much to East Asian Buddhism, especially to early Chinese, Japanese, and Tibetan schools of Buddhist thought. When Buddhism was