Refers to the cave site must be complete, well arched, so as not to make the wind blow the cave site and get angry. Feng shui experts believe that anger gathers in water and wind scatters in the wind. Therefore, it is important to obtain water in the method of geomantic omen, but if the cave is not sheltered from the wind, the anger will dissipate, which is like a shame. Guo Pu's "Funeral Sutra" said: "According to the sutra,' Qi is dispersed by the wind, and the boundary water stops. "The ancients gathered for it, and stopped. So it's called feng shui. Note: ┉ To stop it, you must complete the fortification, surround the front, back, left and right, and then you can hide from the wind and not wander. As the saying goes,' Tang Mingdong's water is like cherishing blood, and the style of the hall is like avoiding thieves'. Can it be sloppy? On the highland, the sky is gloomy from top to bottom, and the dew of anger floats, which is the most afraid of cold and easy to swing away. If people live deep in the secret room, with a little ventilation and proper shoulders and backs, they will get sick. Therefore, when the walls are dense and solid, so that qi can gather, it is based on the four dimensions of Tang points, and it must be completely dense without gaps, so that qi can gather from the wind. When there is a vacancy, there will be trouble in the cave field, which will not only lead to misfortune, but also lead to disaster. In terms of sand, there is no sand in the case, the hall resists, the concave wind comes, the hall is angry, and the Lord is poor and defeated. Xuanwu is a secluded mountain without happiness, and the main room is lonely. When the white tiger is empty, the concave wind fills the right, and the weak brother is young. It is too early to be defeated. The wind with concave shoulders dominates defeat, while the wind with concave feet dominates defeat. Therefore, Liao Jun's "Song of releasing the secrets into the grave" said: "The third most taboo is the concave wind point, and there must be no one." However, on the flat land, the vitality is submerged in the ground and rises from the bottom, not afraid of the wind blowing away, so the hole is in the open ground; There is no harm to the cohesion of life without a cover on all sides. It is built on the basis of strong winds and only on caves in mountains and ridges.