Zenkei Shibayama, a former Abbot of Nanzen-ji, was a Japanese Rinzai master well known for his commentary on the Mumonkan. One of his better-known students was Keido Fukushima, abbot of Tōfuku-ji. Shi
Keidō Fukushima was a Japanese Rinzai Zen master, head abbot of Tōfuku-ji, centered in Kyoto, Japan. Because of openness to teaching Western students, he had considerable influence on the development
Keidō Fukushima with his teacher Zenkei Shibayama in the US, 1969.