Japanese master Eihei Dogen is best known for his comprehensive and profound masterwork, the Kana, or Japanese, Shobogenzo. This monumental achievement, a collection of ninety-five discourses and essays composed in Japanese between 1231 and 1253, is a unique expression of the buddhadharma based on Dogen’s profound religious experience.
A lesser-known work of Dogen’s is his Mana Shobogenzo, or Shobogenzo Sambyakusoku (Treasury of the True Dharma Eye: Three Hundred Cases), a collection of three hundred case koans written in Chinese. This seminal work, which was to influence all of Dogen’s other teachings, remained in obscurity for many centuries. Dogen culled the three hundred case koans collected in the Mana Shobogenzo from Zen texts of the Song era during his travels in China between 1223 and 1227. And, unlike the classic collections of the period, these cases are not accompanied by either a title or a commentary.