There is a big mirror on the wall facing west in my house. From the perspective of feng shui, okay?
Open the door and look at the mirror, because the mirror has refraction, which will make people who enter the door feel psychological and visual discomfort due to the refraction of light.
From the perspective of geomantic omen, the mirror plays a role in keeping away evil spirits. Never look at your own door.
Window to window, door to door, and window to door are not good.