Two outstanding Zen Masters of modern Japan, Daiun Sogaku Harada (1870-1961) and Hakuun Ryoko Yasutani (1885-1973) established a new school of Zen Buddhism that combined the strongest features of both the Soto and Rinzai sects. This integral school of Zen was brought to the West by Philip Kapleau (Rochester Zen Center) and Robert Aitken (Honolulu Diamond Sangha), two outstanding American students of Harada and Yasutani. Danan Henry is a Dharma heir of Philip Kapleau, and completed ten years of Zen training with Robert Aitken to become a sanctioned Diamond Sangha dharma master. All three dharma heirs of Danan Roshi received full transmission and jointly assumed the spiritual directorship of the Zen Center of Denver in the Ascending the Mountain Ceremony on September 12, 2010.