The aim of this paper is to discuss the relationships between Non-arising Samadhi and Non-arising Repentance, which was discussed in Wonhyo's (617-686) Taesung Yukchong chámhoe (大乗六情懺悔 The Mahayana Six senseorgans Repentance) and Kumgang Sammaegyong-ron (金剛三昧経論 The Annotation of The Diamond Samadhi Sutra), as well as to try to compare The Meditation in Precepts and Immediate manner (円頓止観) in the Samadhi of the Lotus Sutra, which is pointed out in the Mohe Zhiguan (摩訶止観) by Zhiyi (智〓), with the Contemplation of Non-arising Repentance.
Wonhyo's Samadhi taught in his Taesung Yukchong chámhoe just means Dream Samadhi (如夢三昧). In his Kumgang Sammaegyong-ron, ‘the Diamond’, in its title is the expression of attaining the Samadhi stage. This kind of Mahayana thought, which was taught in the Taesung Yukchong chámhoe as the Dream Samadhi, is similar in meaning to attaining the Non-arising stage. This is justly expressed as in the one mind and one reality-principle (一心一如). In another instance, on repentance in his Taesung Yukchong chámhoe mainly derived from Zhiyi having attaining the Samadhi of the Lotus Sutra. In another words, two stages, repentance both of based on noumenal principle and on mode of existence, are included in the Non-arising repentance. So we can say that Wonhyo's thought on Non-arising Samadhi and Non-arising repentance belong to the same system with the practice concept on the Meditation in Precepts and Immediate manner and the Contemplation of Non-arising Repentance. It is also said that it based on the middle way that is the reality of all thing and the repentance in the one vehicle.