The real name is Lang, also known as Marshal. "Tan Xuan" refers to the altar of Taoism, which also means protecting the law. He is one of the four Taoist marshals. At the same time, he is also a general of the underworld thunder department and one of the five plagues.
Some people say that it is the god of wealth, in charge of the world's financial resources. Zhao Gongming is the god in charge of financial resources in China folklore, and the god of wealth is mainly divided into two categories: one is the seal of Taoism, and the other is the one of Chinese folk beliefs. Taoism gives God the title of celestial official, and Chinese folk beliefs are celestial officials and immortals.