Why is the eaves across the hall unlucky in the geomantic omen of Yangzhai?

The front door of the house is facing the roof of the house, which is a geomantic roof evil spirit, and it is easy to make people get sick in the head, resulting in damaged impulse. So the best solution is to plant green plants on both sides of the door. You can hang a geomantic compass on the top of the door and use a string of five emperors' money right behind the door to resist this sharp rush. In addition, the door is generally half closed, which can minimize the impact.