Usage of 72 dragons crossing mountains and 60 dragons crossing the ground

The sixty dragons of the first emperor began in Ren, and Ren was born as Kun, and Kun was the land, so he was called the first emperor. Sixty dragons penetrate the ground to infer the near vein, and seventy-two dragons cross the mountain to infer the far vein. According to Shuang Shan, sixty dragons in the first place are divided into five dragons, and then twenty-four mountains and twelve groups can get sixty dragons. Seeing through the earth for the sixty dragons means judging the dragon gods, so we must avoid "emptiness", "evil obsidian" and "wrong emptiness" and not infringe on each other. It must be angry. It is better to inject the "jewelry line" into the coffin in the cave.