Book Description: Translated by Heng-Ching Shih in collaboration with Dr. Dan Lusthaus, the Prajnaparamita-hrdaya-sutra (Heart Sutra), so-called because it is said to distill the essence of the voluminous Prajnaparamita teachings on emptiness, is one of the most highly regarded, oft-recited, and influencial Mahayana texts in East Asian Buddhism. This text, the earliest Chinese commentary on the Heart Sutra, was composed in the seventh-century by monk scholar Ku'ei-chi, a disciple of the renowned monk Hsuan-tsang and the founder of the Fa-hsiang school, the Chinese version of the Indian Yogacara ("Consciousness Only") school. Drawing on a variety of textual sources, Ku'ei-chi presents a line by line commentary on the sutra. [Taisho #1710] (Chinese name: Pan-jo-po-lo-mi-to-hsin-ching-yu-tsan)