2. Imperial salt is very useful in geomantic omen, which can eliminate polluted air and purify indoor environment. It can pacify feng shui and help luck. 3. Putting salt around can ward off evil spirits and prevent villains, and has a strong elimination effect on ghosts, bending over and bad luck. There is a kind of "guardian salt" in the guardian salt, which is used to protect people who travel, usually drive, prepare for exams and travel. 5. Enhance physical strength. In Japan, you have to drink water first. This kind of water is called "power water". It will be full of strength after drinking, which is prepared with salt of defense and strength according to the ratio of 1 3. After boarding the "dirt table" of the competition, you have to bend down and grab a handful of salt and sprinkle it on the ground, which means that the venue and body are clean and you can have a sacred competition. 6. Respect for ghosts and gods. If you want to grab a handful of salt and sprinkle it on your body to purify your body before you go to mourn, this is respect for the dead. When you go back to your house, you must wash your hands with royal salt, so that you won't take the "dead soul" home. 7. In order to protect the baby, a woman should prepare a pot of "soup" around her when giving birth and put the royal salt in it. After the baby is born, she will use this soup to wash it, for the sake of cleanliness and hygiene.