The "Book of Burials" discusses "qi", "The five qi travel in the earth and arise in all things." "The qi of yin and yang, when it swells, becomes wind, and when it rises, it becomes clouds. , when it falls, it becomes rain, and when it travels to the ground, it becomes vitality."
Feng Shui Qi is divided into two types: "vital energy" and "dead energy". The breath of death is called death breath.
Common people also use it to describe some things. For example, a person with strong blood and passion is alive; a person with a poor mental state and a depressed mood is dead. The deserted land is the land of death, and the green and beautiful land is the land of life.