Yuanjue jing; the Sutra of Perfect Enlightenment; 1 fasc.， （T 842.17.913a-922a）. Full title Dafangguang yuanjue xiuduluo liaoyi jing 大方广圆觉修多罗了义经 （SPE）. A Chinese Maha^ya^na sutra which was probably written in the early eighth century C.E. Divided into twelve chapters as a series of discussions on meditation practice， this text deals with issues such as the meaning and origin of ignorance， sudden and gradual enlightenment， original Buddhahood， etc.， all themes which were originally elucidated in the Awakening of Faith 起信论. It was intended to resolve questions regarding doctrine and meditation for the earliest practitioners of the Chan school. The original popularization of the SPE in China is in large part due to the efforts of Zongmi （宗密; 780-841）， who commented on this scripture extensively. His commentaries on this text include: （1） Yuanjue jing da shou 圆觉经大疏. （Great Commentary on the Sutra of Perfect Enlightenment） 12 fasc. Z 243.9.324a-418b. （2） Yuanjue jing da shou chao 圆觉经大疏钞 （Subcommentary to the Great commentary on the Sutra of Perfect Enlightenment） 26 fasc. （3） Z 245.9.460-757.
Yuanjuejing dashu chaoke 圆觉经大疏钞科. （Outline to the Subcommentary of the Sutra of Perfect Enlightenment） 3 fasc. （first two fascicles missing）. Z 244.9.419-459. （4） Yuanjue jing daochang xiuzheng yi 圆觉经道场修证仪. （Manual of Procedures for the Cultivation of Realization of Ritual Practice According to the Sutra of Perfect Enlightenment） Zongmi. 18 fasc. Z 1475.74.375-512.
The sutra became even more popular in the Korean Son tradition where it was a favorite text of Chinul 知讷 and was also explicated by Hamho Tukt'ong （涵虚得通） in his Won'gakkyong sorui 圆觉经说谊. The sutra became a basic text in the Korean monastic educational system.
The Sutra of Perfect Enlightenment is closely related in content to other East Asian works such as the Awakening of Faith （大乘起信论）， the S/u^rangama-su^tra （首楞严经）， and the Compilation of Yongjia （永嘉集）. Translated into English by Luk （1962） and Muller （1999）. Besides the influential commentaries by Zongmi and Kihwa， extent Chinese commentaries include:
Yu zhu yuan jue jing 御注圆觉经 （The Emperor's Commentary to the Sutra of Perfect Enlightenment）. Z 251.10.151-166.
Yuanjue jing chao bian yi Wu 圆觉经钞辩疑误 （Treating Doubts and Errors in the Subcommentary to the Sutra of Perfect Enlightenment） 2 fasc. Guanfu （Sung）. Z 249.10.1-11.
Yuanjue jing zhe yi shou 圆觉经折义疏 （Discerning the Meaning of the Commentary to the Sutra of Perfect Enlightenment） 4 fasc. Tongli （Qing）. Z 263.10.694-770.
Yuanjue jing ji zhu 圆觉经集注 （Collected Notes on the Sutra of Perfect Enlightenment） 2 fasc. Jujian （Sung）， Yuancui （Sung）， Zongmi. Z 257.10.437-479.
Yuanjue jing zhi jie 圆觉经直解 2 fasc. Deqing （Ming）. Z 258.10.480-509. Deqing's commentary has been translated into English by Luk Kuan Yü together with his translation of the sutra.
Yuanjue jing jin shi 圆觉经近释. （A Close Exegesis of the Sutra of Perfect Enlightenment） 6 fasc. Tongrun （Ming）. Z 259.10.510-542.
Yuanjue jing jin song ji jiangyi 圆觉经夹颂集讲义. （Collected Lectures of Jiao on the Sutra of Perfect Enlightenment） 12 fasc. Zhouqi （Sung） Z 253.10.238-377.
Yuanjue jing jing jie xu lin 圆觉经精解评林. （Seminal Explanations on the Sutra of Perfect Enlightenment） 2 fasc. （first fascicle only extant） Jiaokuang （Ming） Z 261.10.573-599.
Yuanjue jing zhu shi zheng bai 圆觉经句释正白. （Correct Explanation of the text of the Sutra of Perfect Enlightenment） Hongli （Qing）. Z 262.10.599-693.
Yuanjue jing xin jing 圆觉经心镜. （The Mind-mirror of the Sutra of Perfect Enlightenment） 6 fasc. Jicong （Sung）. Z 254.10.378-432.
Yuanjue jing xu zhu 圆觉经序注. （Notes on the Preface to the Sutra of Perfect Enlightenment） 1 fasc. Rushan （Sung） Z 255.10.433-435.
Yuanjue jing lian zhu 圆觉经连珠. （String of Jewels of the Sutra of Perfect Enlightenment） Jingting （Qing）.
Yuanjue jing lue shou chao 圆觉经略疏钞. （Abridged Subcommentary to the Sutra of Perfect Enlightenment） Zongmi. Z 248.9.821-959.
Yuanjue jing lue shou zhu 圆觉经略疏注. （Abridged commentary to the Sutra of Perfect Enlightenment） 4 fasc.， Zongmi. T 1795.39.523b-576b; Z 247.9.789-821
Yuanjue jing lue shou xu zhu 圆觉经略疏序注. （Notes on the Preface to Zongmi's Abridged Commentary to the Sutra of Perfect Enlightenment） 1 fasc. Rushan （Sung）. Z 256.10.435-438.
Yuanjuejing lueshu ke 圆觉经略疏科. （Outline of the Abridged Commentary） Zongmi. Z 246.9.758-788.
Yuanjue jing leijie 圆觉经类解. （Various Understandings of the Sutra of Perfect Enlightenment） 8 fasc. Xingting （Sung）. Z 252.10.167-237.
Yuanjue jing shou chao sui wen yao jie 圆觉经疏钞随文要解. （Explanations of Pivotal Passages of the Text of Zongmi's Subcommentary） 12 fasc. Qingyuan （Yuan）. Z 250.10.12-151.
Yuanjue jing daochang lue ben xiuzheng i 圆觉经道场略本修证仪. 1 fasc. Jingyuan （Sung）. Z 1476.74.512-517.
Yuanjue jing yao jie 圆觉经要解. （Understanding the Essentials of the Sutra of Perfect Enlightenment） 2 fasc. Jizheng （Ming）. Z 260.10.543-573.