The floor with high sides and low middle is very good, because according to Feng Shui theory, the fat water on both sides flows into the middle, because in Feng Shui theory, water is wealth, and this terrain means that the wealth on both sides will gather in the middle, especially in business, so it is very good.
Geomantic omen pays attention to a kind of balance and tries to avoid the conflict between various components in a space.
Solemnly declare: the answer is for reference only, please don't be blindly superstitious.