Does the new Chinese decoration enter the gate from the left or the right?

From the perspective of geomantic omen, should the gate and room door be opened on the left or on the right?

People stood in the room and looked out. The left hand is the dragon side and the right hand is the tiger side, just like the ancient left prime minister was higher than the right prime minister. Dragons are afraid of stink, tigers are afraid of trouble. That is to say: the toilet should not be on the dragon side and the gate should not be on the tiger side.