Geomantic Handbook of Dwellings: 17, Geomantic formula is open.

1. The sitting direction of the house should be in the direction of good feng shui. If there are mountains and rivers, the place where the water flows should avoid being near the water source. 2. The doors and windows of the house should face the sunshine or bright space, so that sunlight and light can enter the room and increase positive energy. 3. Place in the residence should avoid being too crowded, and avoid placing too sharp instruments or irritating items. 4. The indoor light should be bright enough, and it should be reasonably configured from natural light to lighting to make the indoor gas field more comfortable. 5. The sanitation in the house should be kept clean and tidy to prevent the accumulation of dirt and peculiar smell, so as to keep the overall fresh and comfortable feeling. 6. The colors of the wall, floor and ceiling in the house should be matched reasonably to create the overall style and atmosphere of the room. 7. Indoor plants should choose plants that are easy to maintain, such as green radish and cactus, and avoid choosing plants that consume too much energy. 8. Indoor air should be kept circulating, and the concentration of indoor oxygen and negative ions should be maintained to ensure good health. 9. The interior decoration should be temperate, and the style and atmosphere should meet the requirements of the overall feng shui to avoid being too ostentatious. 10. Indoor furniture and ornaments should be of good quality and well-made, and the principle of "Excellence" should be implemented.