The door god, the god of the guards of the gate, is a type of painting that is pasted on the door on the Lunar New Year. As the deity guarding the portal of folk belief, people paste its statue on the door to ward off evil spirits, guard the family house, ensure peace, help utilitarianism, and descend auspiciousness, etc., and is a popular guardian deity among Chinese people. According to traditional customs, on the eve of the Spring Festival, every household is busy writing couplets and door gods to pray for the coming year.
According to historical records, the "worship gate" activity already appeared in the Zhou Dynasty, and it was an extremely important ceremony. In the legend of the door god, the legend of the two gods of Shen Dao and Yulei has long been circulated among the people, and classics such as "Classic of Mountains and Seas", "General Meaning of Customs", "Collection of Re-cultivation of Weishu", "Three Religions Origin Search for Gods" and other classics have been recorded.
According to historical records, the "worship gate" activity already appeared in the Zhou Dynasty, and it was an extremely important ceremony. From the Son of Heaven to the common people, they must pay homage to the door god. In the legend of the door god, the legend of the two gods of Shen Dao and Yulei has long been circulated among the people. Books such as "The Classic of Mountains and Seas", "General Meaning of Customs", "Collection of Re-cultivation of Weishu Books", and "Three Religions Origins and Streams Search for God" have been recorded. There is such a passage in the "Classic of Mountains and Seas": "There are big peach trees in the Dushuo Mountain in the East China Sea, which are 3,000 li long, and its humble branches are known as ghost gates in the northeast, and ten thousand ghosts enter and exit." There are two gods, one god and the other depressed, and the Lord reads the evil of all ghosts. "It is said that there is a sacred mountain "Dushuo Mountain" in the East China Sea, and there is a particularly large peach tree on this Dushuo Mountain. This large peach tree winds for 3,000 miles, and in the northeasternmost part of the branch, there is a "ghost gate", which is the gateway for all ghosts to enter and exit. And the two god generals guarding the ghost gate, one named Shen Dao and the other named Yu Lei, prevent harmful ghosts from entering people's homes.