In ancient times, something with a ring in its mouth was actually called gluttony. This animal looks like a human face and a sheep's body, with tiger's teeth and human claws. Another feature is that its mouth is big and its mouth is very big. Moreover, the gluttonous lines on the door have no fixed form, and basically there will be some changes. Some look like dragons, some look like tigers, some look like cows, and some look like a phoenix.
Later, in the Qin and Han Dynasties, the gluttonous pattern slowly disappeared, and then the head spread appeared. At this time, the animal had a fixed image, and its name was Jiaotu. In the legend, Jiaotu is actually the fifth son of the dragon. Although there is no image of Jiaotu as the son of the dragon in some legends, for Lao Baixi, the more sons of the dragon, the better, and it doesn't matter which son it is. After all, the status of the dragon in ancient times is very high.
Therefore, as long as they are related to dragons and have dragon genes in their bodies, such animals can certainly bless their families. The animal Jiaotu actually looks like a clam shell. It likes to stay at home. According to the current words, he is a typical otaku. Such an image is perfect as a gatekeeper in ancient times.
People put the pepper map at the door. The first thing is that they hope it can keep the house. After all, it is the son of the dragon, and it can definitely stop some monsters. The second is to hope that it can guard the door and prevent people with ulterior motives from entering the house. The third is to hope that it can keep its wealth. After all, Jiao Tu was born with a lot of money, and he doesn't like going out, so his family must have a lot of wealth.
Therefore, the pepper map was slowly developed to guard the door. In order to make it more convenient for everyone to knock on the door, a ring was added to the mouth of the pepper map, so that it would be convenient for others to knock on the door and wake up to see if this person is a good person or a bad person.