"Sang" means "mourning" and is an unknown sound. It's a taboo tree of Yang Zhai.
Willow branches are generally used for "evoking souls" and "mourning sticks", and willow branches are often used to be inserted on graves, which is unlucky to plant in the house.
Poplar leaves are numerous, and when the wind blows, it rattles, just like a group of ghosts and ghosts get together and clap their hands. There is nothing to do during the day, but at night, the leaves are swaying and the sound is crisp, which is very scary. After a long time, it will definitely affect people's psychology and cause bad consequences.
Although the locust tree is small, it is flourishing. When it becomes mature, it will block the sunlight and prevent it from entering. There is often such a tree in a yard, which will be very cool, and the word' Sophora japonica' is' wood', which is' ghost' and the most cloudy.
Pines and cypresses are usually planted in the cemetery to protect the yin house.