Kosho Uchiyama was born in Tokyo in 1912. He received a master's degree in Western philosophy at Waseda University in 1937 and became a Zen priest three years later under Kodo Sawaki Roshi. Upon Sawaki's death in 1965, he became abbot of Antaiji, a temple and monastery then located on the outskirts of Kyoto. Uchiyama Roshi developed the practice at Antaiji and traveled extensively throughout Japan, lecturing and leading sesshins. He retired from Antaiji in 1975 and lived with his wife at Noke-in, a small temple outside Kyoto, where he continued to write, publish, and meet with the many people who found their way to his door, until his death in 1999. He wrote over twenty books on Zen, including translations of Dogen Zenji in modern Japanese with commentaries, as are various shorter essays. His Opening the Hand of Thought: Foundations of Zen Buddhist Practice is available in English from Wisdom Publications. He was an origami master as well as a Zen master and published several books on origami.

Shohaku Okumura is a Soto Zen priest and Dharma successor of Kosho Uchiyama Roshi. He is a graduate of Komazawa University and has practiced in Japan at Antaiji, Zuioji, and the Kyoto Soto Zen Center, and in Massachusetts at the Pioneer Valley Zendo. He is the former director of the Soto Zen Buddhism International Center in San Francisco. His previously published books of translation include Shobogenzo Zuimonki, Dogen Zen, Zen Teachings of Homeless Kodo, and Opening the Hand of Thought. Okumura is also editor of Dogen Zen and Its Relevance for Our Time and SotoZen. He is the founding teacher of the Sanshin Zen Community, based in Bloomington, Indiana, where he lives with his family.