Interior modeling of the house: the layout of the house should be reasonable, the static and dynamic should be separated, and the public and private should be separated. Adequate light is very important, so people can feel warm when they go in. The house should not be too big, and choose the type that suits you according to the population. The Yellow Emperor's House Classic says: "There are five shortcomings in the house, which make people poor and five realities make people rich. There are few people in the room, and one person is empty; The house has a big door and a small inside. The second deficiency is that the wall courtyard is boundless, the third deficiency is that the well stove is not in place and the fourth deficiency is lacking. There are many homesteads, few houses, wide courtyards and five shortages; Small house, many people, one reality: big house, small door, two realities; The wall courtyard is complete, with three realities: small house, many animals and four realities; The house ditch flows southeast and has five solids.