The coarse salt geomantic omen room began to spread clockwise in the northeast corner. How does this spread?

Generally speaking, raw salt is used in geomantic omen to remove mildew and evil. Generally, when moving to a new place, the raw salt and rice will be mixed and scattered in every corner of the house. Generally speaking, it will be scattered three days before moving into the house, and then every corner of the house will be swept away in the middle, and it is not allowed to be swept out of the door.