The Linji lu (Record of Linji) has been an essential text of Chinese and Japanese Zen Buddhism for nearly a thousand years. A compilation of sermons, statements, and acts attributed to the great Chinese Zen master Linji Yixuan (d. 866), it serves as both an authoritative statement of Zen's basic standpoint and a central source of material for Zen koan practice. Scholars study the text for its importance in understanding both Zen thought and East Asian Mahayana doctrine, while Zen practitioners cherish it for its unusual simplicity, directness, and ability to inspire.

One of the...