1, big cemetery environment, big backing, followed by mountains, this is called mother mountain;
2. There should be mountain guards on the left and right sides, just like a plush chair. The back mountain should be high and the left and right guards should be low;
3. There must be a mountain direction ahead, far away;
4. The middle hall should be wide and can accommodate thousands of troops;
5. There should be a water system in the middle.