Shěn Zhīyán 沈知言 was a late-Táng Daoist alchemist, author of KR5c0342 Tōng xuán mì shù 通玄祕術 (“Secret Techniques for Communicating with the Mystery”). An earlier version is attested from the late 9th century.
Shěn Zhīyán 沈知言 was a late-Táng Daoist alchemist, author of KR5c0342 Tōng xuán mì shù 通玄祕術 (“Secret Techniques for Communicating with the Mystery”). An earlier version is attested from the late 9th century.