This problem finally has a new definition recently. It is called "shadow evil", that is, the sensory stimulation is received by the vague and fuzzy shadow beside the door, window lintel or outside the grille. This is mainly a matter of door placement. The reason is the psychological implications of the color of the door and the light. Generally, at the beginning, you just feel the shadow of someone in the peripheral vision. Later, you don’t even need to look, you can feel the shadow of someone. Hang a hanging Five Emperors White Jade Coin on each side of the door lintel. It is best to change the color of the door frame for the best effect. If this situation arises despite these issues, place a Yin Yang and Five Elements Talisman high in the house.