What's the meaning of "the case" on feng shui?

The so-called "the case", is a pilgrimage and case of the mountains.Think feng shui house, dragon vein cave, qi condenses, hall is wide, ChiHu fills the air, distant mountains near water, the yi evening together, thousand source of arteries and veins, always one place.Far is the way, and the acupuncture point, is relatively and fell down thanks to yi's shape is as the mountain near their own hole, before a few dragon jade, is a mountain.

Xu Shanji in the act of geography, the son of man instructions sand, cloud: ", in the case, all of the mountain of acupuncture point before, its nearly and outsiders yue.Far and the most high."Therefore, acupuncture point sign of the case were the real dragons, the dragon vein, comparing to strip off in, where the junction point, extremely difficult pursuit.If can know the mountain mountain, which is its cease.