The so-called green dragon and white tiger refers to the hotel you choose, and the buildings are symmetrical. The building on the left and the building on the right are the best, or the building on the left is taller than the building on the right. This is what the dragon looks up and the white tiger looks down. On the other hand, there should be flat ground in front of the hotel, which can form flower beds, pools and rockery screens. Some cars let him drive from left to right. This is the rosefinch in the hotel. If there is a tall building in front of the hotel, it may cause depression to the hotel.