World geomantic omen
The Book of Funeral says, "Buried people take advantage of anger. The qi of yin and yang is the wind, the cloud and the rain. Walking in the ground is angry, and everything is born. People receive from their parents, and their bones get qi, while their bodies get shade. Cover the living, the condensation of qi, the knot of bone formation, death and stay alone, so the burial, anti-gas into the inside, with the shadow of the law also.
That is, we should choose a lively place for burial, that is, the so-called land of geomantic omen, where everything is alive. Man is a product of qi, and human skeleton is formed by gas condensation. When people die, their breath is gone, leaving only a pair of lifeless bones. If the bones are buried in a lively place, they will be dead in spring and the soul will be sublimated. Everyone is born by his parents, just like a big tree. Parents are the "roots" and the trunk, while descendants are the "branches" of their parents in the world. Parents' bones are alive under the ground, and the "Ben" will be full of vitality, and the "branches" connected with the "Ben" will also benefit greatly, flourishing and lasting.