Zen expected to become familiar with the classics of the Zen canon". A review of the early historical documents and literature of early Zen masters clearly reveals that they were well versed in numerous Mahāyāna Buddhist sūtras, including Madhyamaka. Especially the Lotus Sutra played a large role in the development of East Asian Buddhism, including Zen. Nevertheless, Zen is often pictured as anti-intellectual. This picture of Zen emerged during the Song Dynasty (960–1297), when Chán became the dominant form of Buddhism in China, and gained great popularity among the educated and literary classes of Chinese society. The use of koans, which
Zen lineage charts in bringing Zen practice to the west. Although the membership of Sanbo Kyodan is small, 3,790 registered followers and 24 instructors in 1988, "the Sanbõkyõdan has had an inordinate influence on Zen in the West". His westerns students have spread out via Taizan Maezumi. Zen lineage charts Zen lineage charts depict the transmission of the dharma from one generation to another. They developed during the Tang Dynasty, incorporating elements from Indian Buddhism and East Asian Mahayana Buddhism, but were first published at the end of the Tang. The idea of a patriarchal lineage in Chan dates back to the epitaph