Why is the mountain gate of the Buddhist temple also called Sanmen Hall?

Hunjiang River on the east side of Dule Temple in Jixian County (Source: Phoenix Net China Buddhism)

The gate of Ha Jiang (source: China Buddhism of Phoenix Net) on the west side of Dule Temple in Jixian County is called Sanmen. Its shape is like a que, with three doors, so it is called three doors. These three doors contain the meaning of wisdom, compassion and convenience, or symbolize the meaning of faith, understanding and action. But you don't have to have three doors to be called "three doors" There is only one door, also called "three doors". Sanmen Temple also has writers who write about Shanmen Temple. In ancient times, there were many courtyards in temples, among which the houses were called Tang or Liao. In the second year of Song Chongning (1 103), the Confucius Temple was the main hall, so the courtyard of the Buddhist temple was called Tang Liao, and its main part was also called so-and-so hall. In the three doors of the Buddhist temple, two statues of donkey kong are carved on both sides of the doors, which are the hag gods who guard the Buddha with a pestle (the most powerful weapon in ancient India), also known as "holding King Kong". Legend has it that the Buddha often has 500 guards with King Kong, whose main name is "Secret King Kong". According to the joke in the novel Romance of Gods, secular people call this image two generals, and there is no such name in Buddhist classics.