People in the cemetery call the yard where the living live a house, which means vigor and vitality. The cemetery where the dead are buried is called a ghost house. Yin houses generally plant pine trees and cypresses, symbolizing the immortality of the dead. In addition, planting pine and cypress also has the function of soil and water conservation and grave protection. Of course, in order to find the graves of relatives, people will plant trees next to them. When they grow up, they can see where they want to sweep miles away.
On the contrary, no matter how delicious the mulberry is, it will not be favored by the owner, and the pear with refreshing taste will be rejected by the front yard and backyard. Why? It is probably the homonym of "mulberry", "mourning", "pear" and "separation". There is a saying among the people in the cemetery: "Don't go into the palace, Sang Baisong and Li Huai", which is the truth.