In the corner of two bedrooms, one put a can of red beans and the other put a can of mung beans. Is this Feng Shui or something? What's the point?

According to feng shui, it is necessary to distinguish where to put it. You can press the southeast and northwest, and feng shui will be determined according to the mountain situation. Whether it is red bean or mung bean, in geomantic omen, it can play the role of raising children and making money. But keep the right direction, otherwise it will be harmful. If it's not your family's business, don't get involved. Feng shui is a magnetic field, not your own business. Participation will bring disaster to yourself. Feng Shui should avoid some curiosity because it is also a science.