What is the use of "Tai Gong Jiang is here"?

It is one of the customs of the Han people that Jiang Taigong has no taboos here. On New Year's Eve, people should affix the God of the Kitchen God and couplets to bring the God of the Kitchen home to ensure a safe year. It is also necessary to post door gods, Spring Festival couplets, the word "福", red money, etc. to ward off evil spirits and bring good fortune. In the old days, Han people would even post "Jiang Taigong has no taboos here". This horizontal strip is affixed to the lintel of the door. It is rare on the main door. Most of it is affixed to the lintel of the screen door, living room and main room, or on the roof beams and floor lintels. Store owners like to post it above the store or entrance, which is very eye-catching. This custom was very popular in the past and has a long history. This custom is still often seen in some rural areas when building houses or some large-scale activities.