Who are these three officials?

Celestial officials, local officials and water officials. The three officials refer to heaven officials, earth officials and water officials, and they are the earliest three gods worshipped by Taoism. They are personified through the natural worship of heaven, earth and water. Because Taoism sets the date of birth of the three officials at Sanyuan Day, it is also called "Sanyuan Emperor". According to their respective main functions, it is also called Shangyuan Futianguan, Zhongyuan Pardon Officer and Xia Yuan Xiehe Water Officer.

1, Tianguan: It can be called Emperor Wei Zi or Emperor Yuanyang. Both "Yuanyang" and "Wei Zi" originated from the name of "Yuanyang Qibao Wei Zi Palace" in Tianguan Palace.

2. Local officials: It can be called Qing Xu Emperor or Qing Ling Emperor. In SanLi Fu, it is also called Qingling Emperor of Dongling. The names of "Dong Ling" and "Qing Xu" come from the name of "Dong Ling Qing Xu Palace".

3. Shuiguan: It can be called Emperor Fusang or Emperor Dongyin and Emperor Gusui. The water official is in charge of the water house, so it is called Dongyin Emperor. "Yanggu" is derived from the name of Shuiguan Zhonggong "Tanggu Dongquan Palace".