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 A review of the early historical documents and literature of early Zen masters clearly reveals that they were well versed in numerous Mahāyāna Buddhist sūtras, including Madhyamaka.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
Buddhism in the United States By 1958, anticipating Kerouac's publication of "The Dharma Bums" by three months, "Time" magazine said, "Zen Buddhism is growing more chic by the minute." Contemporary Rinzai Zen teachers in United States have included Kyozan Joshu Sasaki Roshi, Eido Tai Shimano Roshi, and Omori Sogen Roshi (d. 1994). Sasaki founded the Mount Baldy Zen Center and its branches after coming to Los Angeles from Japan in 1962. One of his students is the Canadian poet and musician Leonard Cohen. Eido Roshi founded Dai Bosatsu Zendo Kongo-ji, a training center in New York state. Omori Roshi founded Daihonzan Chozen-ji, the first Rinzai