Killing Energy hitting a Building
According to Feng Shui principles, Energy moving in a long straight line is called Sha Chi (The killing energy). This Sha Chi is destructive, just like an arrow or a bullet aimed toward a target. Therefore, as a rule of thumb, any building or house or room that is illuminated at night by strong lights, lamplight or the headlights of vehicles is certainly getting a strong dose of this adverse Sha energy. Use heavy curtains or shutters to block it out. You can also bounce the light back with a simple mirror or a Bagua mirror placed in the window facing out.