Cheng Xuanying

Cheng Xuanying (fl. 631–655), courtesy name Zishi, was a Taoist monk known as the "Master of Doctrines at Xihua Abbey" and a key figure in the "School of Double Mystery" during the Tang dynasty. Born in Shan Prefecture, Henan, he lived in seclusion until summoned to the capital Chang'an in 631 to lead Xihua Abbey. He was known for his commentary on the Lingbao scripture, the *Clarified Meaning of the Scripture of Universal Salvation*. Cheng participated in significant events such as debates between Daoists and Buddhists and the translation of the Daodejing into Sanskrit. He also played a role in the investigation and subsequent destruction of the Sanhuangjing. Due to his interpretation of the Classic of Changes, he was banished to Yuzhou around 653 and died between 685 and 690. His commentaries on the Zhuangzi and Daodejing are noted for their concise explanations and philosophical depth.