Huangfu is a unique culture of Taoism, a certificate and secret of communication between Taoism and human beings and gods, and an indispensable and important spell of Taoism. There are many mantras in Taoism, which are preserved in a large number of Taoist scriptures and used in fasting science and ritual activities, and have the mysterious charm of * * *. In the long culture of Taoist symbols, the symbol map is mainly a holographic graphic tool used by ancient sages for internal repair and external use. Later, after a series of reasons and cultural changes, Fu gradually became a common figure and character used by Taoist doctors to cure diseases and exorcise evil spirits, or called Fu Shu, Fu Shu, Fu Tu and Fu, with different names, actually referring to a finger. Among them, Taoist incantations are classics left over from thousands of years of cultural changes.