Zen lineage charts 南浦紹明 (1235–1308), who received transmission in China from the monk Xutang Zhiyu 虚堂智愚 (Japanese "Kido Chigu," 1185–1269) in 1265, who then returned to Japan in 1267. It was then spread by his student Shuho Myocho (second generation) and Kanzan Egen (third generation), who made it an influential school. The two main schools today are Takujū and Inzan, which both descent from Hakuin. Although it is difficult to trace when the West first became aware of Zen as a distinct form of Buddhism, the visit of Soyen Shaku, a Japanese Zen monk, to Chicago during the World Parliament of Religions in
Doctrinal background of Zen Doctrinal background of Zen Zen has a rich doctrinal background, despite the traditional Zen narrative which states that it is a "special transmission outside scriptures" which "did not stand upon words." Classical Chinese Chán is characterised by a set of polarities: absolute-relative, Buddha-nature - sunyata, sudden and gradual enlightenment, esoteric and exoteric transmission. The Prajnaparamita-sutras and Madhyamaka emphasized the non-duality of form and emptiness: "form is emptiness, emptiness is form", as the heart sutra says. This was understood to mean that ultimate reality is not a transcendental realm, but equal to the daily world of relative reality. This idea fitted