Physiognomy is a folk knowledge that predicts fate by looking at facial features. It is a branch of the yin-yang and five-element system of classical philosophy. The qi of yin and yang and the five elements transform all things in the world. People are born with destiny in the sky and have symptoms in the body. All external body surface features contain different destiny information. Therefore, the ancients believed that as long as the rules are grasped, the information can be revealed from facial features. Calculate a person's wealth and poverty, as well as changes in fate.