High sand protection on both sides of feng shui means a good room.

The height of sand protection on both sides of feng shui represents that the choice of sand protection on the left and right sides in feng shui is very important. The sand on the left side of the cave field is called Shangsha, also called Longsha. The sand on the right is called Xiasha, also called Husha. A good house can be divided into two parts, which is related to the concept of respecting the left and the wind. So the sand on the left is higher than the sand on the right, which shows that the house has good feng shui.