Why is Erlang God called "Pass"

Yang Jian, Erlang God, Taoist common god, general of heaven, nephew of the Jade Emperor, has endless changes, magical powers and sanctified the flesh; In his early years, he split Taoshan to save his mother, and regarded the heavenly soldiers as nothing, clearing the source and realizing the truth; He also helped the king of Wu cut Zhou, and then sealed it to show his holiness and help the king of Wu. The queen mother loves her very much, but she doesn't want to live in heaven because she is at odds with her uncle Jade Emperor. On the contrary, she was incense in the lower world. She led the seven sworn brothers of Meishan and her 1200 Cao Tou God to the Guanjiangkou, and made an agreement with the Jade Emperor to "listen to the tune and not listen to the announcement", which means: I obey your military orders and send me to fight ghosts and exorcise demons. If I let you come to see me as a monarch or an uncle, I won't have to ask. Righteousness and justice, showing saints and protecting the people, all beings are in danger, and calling their titles will save them.

Because it is stationed in Guankou, it is called Guankou Erlang God.