Feng shui opposite the two gates.

From the theory of five elements of geomantic omen, there is nothing wrong with door to door, as long as the mullions on both sides of the door can't ask the opposite door, and vice versa, now it is defeat. The way to crack it is to plant a bronze mirror in the middle of the door and a bronze mirror on the opposite door, so that the murderous look will be reflected from the mirror. If one side doesn't set up, the other side will be destroyed and killed.