David Schneider is the author of Street Zen: The Life and Work of Issan Dorsey. He was ordained as a Zen priest in 1977 and was made an acharya of the Shambhala lineage in 1995.David Schneider is the author of Street Zen: The Life and Work of Issan Dorsey. He was ordained as a Zen priest in 1977 and was made an acharya of the Shambhala lineage in 1995.