What is the meaning of the god of the door of Jingde Qinqiong

The old custom of Han Chinese folklore is to post the door god in every household during the Spring Festival. The door god is two military generals, gold helmet and armor. One holding a whip, one holding a gun; a black face with a thick beard, a white face with a gnarled beard. Today's door gods generally refer to Qin Shubao and Yuchi Jingde, the great generals of the Tang Dynasty.

Posting door gods is one of China's unique traditional cultural customs. Every New Year's Eve, people tear down the old door gods and replace them with new ones. Door gods, as the name implies, are the spirits that guard the door of the house, and are the collective name for the protective spirits of the house imagined by the ancient people. In the past, the door god was mainly affixed to both sides of the door panel of the main door, mainly "to drive away ghosts and evil spirits" and "pray for good luck and welcome auspiciousness" two types of door god, including ghosts, generals, pray for good luck, etc. The general gate of the house is decorated with martial arts and generals, so as to avoid evil spirits. Generally, the main door of a house is decorated with a general's door god, and the inner door of a house is labeled with a god of praying for good fortune. Ghost hunting door god generally painted Zhong Kui, generals door god mostly for Qin Qiong and Jingde, pray for blessings door god more with the God of Fortune, Luk, fortune similar to the dress of the civil officials.