Genjo Marinello Oshō began his Zen training in 1975 and was ordained as a novice monk, in 1980. From 1981-1982 he trained at Ryutaku-ji in Japan with Sochu Rōshi and Soen Nakagawa Rōshi. Marinello later continued his training with Eido Shimano Rōshi, abbot of Dai Bosatsu Monastery. On May 21, 2008, Marinello received dharma transmission from Eido Shimano Rōshi, in a ceremony also involving his former teacher Takabayashi. Marinello is a licensed psychotherapist, a member of the interfaith organization Spiritual Directors International, and of the American Zen Teachers Association.