The wall clock in the living room should not be facing inward. It is better to face the door or balcony. Because when there is no one in the room, the air is still. The swing of the wall clock can make the air move, making the room full of vitality. However, the wall clock cannot be hung in the middle of the hall opposite the door, because "clock" and "end" are homophonic. If someone pushes the door in and sees the clock (end) when he looks up, it may be associated with unlucky, so hanging it next to the door is considered lucky.