See Hsüan-chüeh of Yung-chia. （665-713）. Chan master of the early Tang. He is also known as Mingdao 明道， Zhenjue 真觉 and Daoming 道明. His posthumous title was Wuxiang Dashi 无相大士. Originally from Wenzhou， he entered the sangha at an early age， studying the Tripitaka and becoming steeped in Tiantai doctrine. A direct disciple of Huineng 慧能， Hsüan-chüeh had background in Ch'an， Tiantai and Huayan. He is popularly known as Yisujue （一宿觉）， which literally means "One-night-enlightened，" referring to his one-night stay at the residence of the Sixth Patriarch （see T 2014.45.397a）. He is also the author of a two short， but extremely popular texts called the Zhengdao ge （证道歌; The Song of Actualizing the Tao） and the 禅宗永嘉集Chanzong yongjia ji. In both texts he deals with important soteriological themes of the period which are also the topics of the Awakening of Faith 大乘起信论， Sutra of Perfect Enlightenment 圆觉经， S/u^rangama-su^tra. For his biography see T 2060.50.758a-b and T 2014.48.397a.