Keizan Jokin zenji, 1268-1325. Ordained by Koun Ejo. Dharma-heir of Tettsu Gikai and founder of Sojiji Monastery. Keizan extended Soto Zen widely into the Japanese lay populace. Author of the Keizan Shingi, the Denkoroku, Sankon Zazen Setsu, Zazen Yojinki. For online translations see http://www.wwzc.org/onlinepub.htm .