The Gateless Gate is a collection of 48 Chan (Zen) koans compiled in the early 13th century by the Chinese Zen master Wumen Huikai.
Each koan epitomizes one or more of the polarities of consciousness that act like an obstacle or wall.
The common theme of the koans of the Wumen Guan and of Wumen\'s comments is the inquiry and introspection of dualistic conceptualization.
Each koan is accompanied by a commentary and verse by Wumen.
Wumen\'s preface indicates that the volume was published in 1228.
The Gateless Gate is a collection of 48 Chan (Zen) koans compiled in the early 13th century by the Chinese Zen master Wumen Huikai