When building a tomb, you need to choose a cemetery first. The grave belongs to the cathode. If you choose to build in a place where you can't see the sun, the fortune of the whole family will not be better. A good cemetery must have Long Mai, and Long Mai refers to a mountain where you can see the light. There must be water, mountains in the sun, water in the shade, and yin and yang should be reconciled. You can't choose a cemetery in a low-lying place. It's better to have a higher ground.