Genki Takabayashi Rōshi was invited by the Seattle Zen Center (founded by Dr. Glenn Webb, at the time a University of Washington Art History professor) to become the resident teacher in the fall of 1978.

Genjo Marinello Oshō began his Zen training in 1975 and was ordained as an unsui, or novice monk, in 1980.

On May 21, 2008, Marinello received dharma transmission from Eido Shimano Rōshi, in a ceremony also involving his former teacher Takabayashi.

[3][4] Marinello is a licensed psychotherapist,[5] a member of the interfaith organization Spiritual Directors International[6]), and of the American Zen Teachers Association.

He has volunteered as a Buddhist pastor for the Washington State Department of Corrections, been a meditation instructor for Birankai International (Aikido association)[8] and has worked with the Seattle Church Council as part of an interfaith trauma response team[9]).