Why do Japanese legends say that scattering beans can exorcise ghosts?

First of all, the fried soybeans are sacrificed to the shrine, and at night, the doors and windows are opened, while the ghosts are called out to be blessed, and the beans are scattered to drive away the ghosts. In order not to let Fu escape, close the doors and windows immediately after sprinkling beans, and then the whole family will catch the remaining beans together, preferably beans one size bigger than themselves, and then eat them. This year, Fuxing will shine brightly. In temples, it is generally men in the animal year who undertake the task of scattering beans to exorcise evil spirits. In every family, there are no special rules for people who scatter beans. It is often the father who wears a ghost mask to play the role of a ghost, and the children scatter beans at the "ghost".

Of course, you may ask, why soybeans and not other beans? This is because the Japanese think that soybean is hard and belongs to gold, and soybean itself is actually a symbol of ghosts. However, because it has been bombed by fire, it can't cause any harm, only the "golden luck" inside can be kept ~