Yin Shun is a leading authority of Buddhist studies with abundant masterpieces of Buddhist thinking handed down to the monks and secular people in modern Taiwan. His concern for the thinking of Lotus Sutra is mainly presented in Convenience Lesson No. 2, ”Since the happiness and intelligence of the various Buddhas are sufficient, it is known that all the phenomena are unchanged and empty, and it is also understood that the seeds of Buddhism are out of fate. Therefore, Buddhist doctrine is the only Buddhist vehicle,” ”Bead Connection Metaphor” of 500 Disciples Record Lesson No. 8, ”Appeared to Become Buddha” of the Dragon Daughter in Devadatta Lesson No. 12, and ”Burning Body as an Offer to Buddha” of Medicine King Bodhisattva's Story in Medicine King Bodhisattva's Story Lesson No. 23. The contents of these doctrines involve what the Buddhist nature is, how to become a Buddha, the process of becoming a Buddha, whether a woman can become a Buddha, and the meaning of Burning Body as an Offer to Buddha during practicing Buddhist rules. All these issues are needed to be further explored.The paper clarifies Yin Shun's viewpoints in his interpretation of Lotus Sutra, and compares his viewpoints to Fa Yun's Lotus Sutra Meanings Record in Liang Dynasty, Zhi Yi's Lotus Sutra Texts and Lotus Sutra Meanings in Sui Dynasty, Ji Zang's Lotus Sutra Discussion, Lotus Sutra Floating Meanings and Lotus Sutra Interpretations in Sui Dynasty, Kui Ji'sPraise to Lotus Sutra in Tang Dynasty, and Jie Huan's Important Interpretations of Lotus Sutra in Song Dynasty. The so-called ”Buddhist nature” is divided into ”understanding of Buddhist nature” and ”exercising of Buddhist nature.” According to Zhongguan Meanings, ”understanding of Buddhist nature” refers that all rules originally have no nature themselves, and their nature is emptiness. As to ”exercising of Buddhist nature,” it is a nature leading to one's being a Buddha after practicing Buddhist scriptures and bearing them in mind. Therefore, for ”the origin of Buddhism being cause,” it refers to ”exercising of Buddhist nature.” As influenced by Nirvana sutra, Zhi Yi proposed three Buddhist-nature causes, and took ”positive Buddhist-nature cause” as the ”original existence of Buddhist nature.” Ji Zang inclined to ”original existence of Buddhist nature.” Kui Ji took the three natures of Master Wei-Shi to explain Buddhist nature, and considered Buddhist nature as ”a circular appearance with solid nature.” Towards the interpretation of ”bead” in ”Bead Connection Metaphor,” YinShun and his followers all suggested that the ”Bodhi heart” developed in the past was a priceless treasure, which was a real fact being as real as an intelligent treasure. ”Appeared to Become Buddha” of Dragon Daughter has its meaning. From ”Viewpoint on Equality of Daoist Instruments,” Yin Shun elucidated that Dragon Daughter's appearance to become Buddha was a ”convenient” saying. The process of cultivating oneself to become Buddha took a very long period of time, instead of being made overnight. Zhi Yi took Dragon Daughter's ”Original Development and Stay in the Heart” to become Buddha. Ji Zang thought that Dragon Daughter became a Buddha extremely rapidly because she supplemented herself and develo
