Traditional saying:
Appropriate: 1. There is a hall (empty place), which can form a hall and make it rich.
2. With cross-flow water, rivers or roads can absorb air and guide it, but they need a certain distance and should not be too close.
3. There should be a hill, which can turn evil into disaster and will not form an isolated door.
4. There are front doors and side doors, proportion and scale.
Avoid: 1. Facing the road, there will be a rush, which is called a road rush. Family members are prone to illness or accidents.
2. For dead trees or telephone poles, form a door.
3. Avoid stagnant water, not dirty and stagnant pond or ditch water.
4. Don't be too angry with yamen and temples. Outside doors are too angry with officials and temples. Many officials are not accidents.
The door should not be straight, too wide and too high.