2. Red paper: In the past, red paper was mainly used to write Spring Festival couplets, and a small note was attached to someone else's gift package as a seal. In fact, the idea of sealing and putting red paper on the door (although written on it) are used to pray for evil spirits. In the folk, you can often see red paper cut into small strips and pasted on doors, bedside, pigsty and cowshed doors, cars, windmills, etc. to pray for evil spirits and safety. The original source is that red paper represents blood sacrifice, that is, the blood of livestock and even enemies is smeared at important positions to deter the enemy's evil spirits, and later it evolved into red paper.
3. Rice: In fact, the saying that rice exorcises evil spirits comes from the technology of exorcising evil spirits with grains. It is said that grains can ward off evil spirits (because it is said that dead people will not come out to make trouble, because there are coffins of grains), especially glutinous rice, which has been spread wonderfully by zombie films in Hong Kong. Up to now, in Hakka customs in western Fujian, there is still the habit of wrapping rice, soybeans/black beans, tea, salt and copper coins with red cloth as amulets. In practical application, rice is especially useful for people and children who are prone to ghost dreams to soothe their nerves.