Guo Pu, a geomantic master in Jin Dynasty, said in the Book of Burial: Burying people hides qi. The qi of yin and yang, that is, the wind, rises to the clouds, falls to the rain and walks on the ground, which is called anger. In spring in Hua Mu, the grain sprouts in the room and the air spreads on the ground. Its behavior is also due to the potential of the land. Its gathering is also due to the situation. The ancients gathered together to make it last for a long time, so it was called Feng Shui.
This is the first time that the word Feng Shui appeared in ancient literature. It is also the first definition of feng shui.