Zen originated as Chan Buddhism and was influential.
== History ===== Chinese Chn ===Zen (Chinese: Chn ) Buddhism, as we know it today, is the result of a long history, with many changes and contingent factors
In Japanese Zen, the use of esoteric practices within Zen is sometimes termed "mixed Zen" (kensh zen ), and the figure of Keizan Jkin (12641325) is seen as introducing this into the Soto school

