What is the relationship between house modeling and geomantic omen?

Note: No matter what kind of house, stairs and doors should not be straight, especially villas. Sometimes, the stairs are designed to face the door for the sake of beauty, which will easily lead to loss of money and happiness. And the slope of the stairs should be as small as possible, otherwise it is difficult to gather gas. The size of the house is also related to the shape choice of stairs.