Cheng Xiejie is an author whose biographical details are extremely limited in publicly available sources: his birthplace, dates of birth and death, and academic background cannot be reliably established. The main clue currently available is the work attributed to him, Songya Yijing (The Medical Path of the Pine Cliff). Classified under Eastern philosophy, the book deals with medical theory and health cultivation, reflecting the author's attention to traditional medical principles and the care of body and mind. On the evidence available, Cheng Xiejie's writing emphasizes practical experience and the exposition of medical theory; his style is concise and pragmatic rather than abstractly speculative, showing the orientation of a traditional physician who grounds theory in clinical practice and everyday care. Although Songya Yijing did not circulate widely, it offers a concrete text for examining where traditional medicine and philosophy intersect, and it has preserved Cheng Xiejie's name in bibliographic records. Beyond this book, no other works or biographical records have been found, and further research awaits new material.
