What does it mean to hang a sharp knife and a mirror on the door?

The round mirror on the door is a "demon mirror". With it, monsters can't enter the house. Of course, this is superstition. However, the older generation especially admired this "magic mirror". Every morning, they stand on the wooden bench and wipe the mirror with red silk so that there are no gray marks on it.

At that time, some people's "demon mirror" was so big that people could look in the mirror when they came in and out.

If someone is sick, they will pin their hopes on this mirror, hoping that the mirror can kill the "sick demon". If the patient is not well, please ask Mr. Feng Shui to look at the patient in the mirror. This is an absurd procedure: Mr. Feng Shui holds a small round mirror in his hand, shines all over the patient's body, then closes his eyes and prays, and finally shouts, "Get out, sick demon." After that, he threw the small mirror in his hand outside the house and asked the patient's family to smash it completely with a hammer and bury it in the soil. This is obviously extremely ignorant, but in the old society, people lived a hard life and had no money to see a doctor. Many people can only seek spiritual comfort through this superstitious practice.

Now, some residents have installed a small round mirror on the wall above the door, which may still be inheriting this ancient custom.

It may also be used to ward off evil spirits. This is an expression of hope for family security and prosperity. It's like putting up Spring Festival couplets.

There are several ways to crack it: 1, hanging a gossip mirror; Put a sign at the door, with yellow paper and cock blood. Please look in the mirror before entering the room.