How to remove sand and absorb water in geomantic omen

The so-called "sand removal and water absorption" means to inspect all the peaks and sands, enter the first dragon, and the water coming and going in Tang Ming. From a modern point of view, it also includes the education, transportation and economic facilities in Yangzhai. Dredging sand and receiving water are carried out through Tang Ming's position, that is, acupoints. The location of the point can only be selected by removing sand and receiving water. This choice is called pre-selection, and the selection of acupoints can only be determined after the context is proved.