Chih-yüan [志遠] (768–844) (PY Zhiyuan; Shi’on): A priest of the T’ien-t’ai school in China. At Mount Wu-t’ai he studied the T’ien-t’ai doctrine and practiced the Lotus meditation, a meditation based on the Lotus Sutra. Jikaku, later the third chief priest of the Japanese Tendai school, traveled to China in 838, and in 840 he studied the T’ien-t’ai doctrine under Chih-yüan at Mount Wu-t’ai.