Soyen Shaku
Kosen did his Zen training under Daisetsu Shoen (1797–1855) at Sōkoku-ji and received inka from Gisan Zenkai at Sōgen-ji in Okayama. Kosen was instrumental in bringing Zen to lay practitioners and to the west. Kosen's Dharma heir Soyen Shaku participated in the World Parliament of Religions in Chicago, which introduced Soyen Shaku's student D. T. Suzuki to Paul Carus and western Theosophy. Kosen's dharma descendant Tetsuo Sōkatsu established Ningen Zen Kyodan, an independent lay-Rinzai school.