"Commentary on the Annals"

The Yellow Emperor asked, "I wish to hear the essence of truth and falsehood." When qi is abundant, the body is abundant; when qi is deficient, the body is deficient. This is the norm; conversely, it leads to illness. When there is an abundance of grain, there is an abundance of qi; when there is a deficiency of grain, there is a deficiency of qi. This is the norm; conversely, it leads to illness. When the pulse is firm, the blood is firm; when the pulse is weak, the blood is weak. This is the common condition. To counteract this is a disease. The emperor said, "How to rebel?" Qi Bo said: "When qi is abundant, the body is cold; when qi is deficient, the body is hot. This is called the opposite." When there are many people in the valley but little energy, this is called the opposite. When the grain is not long and the energy is abundant, this is called "reversal". When the pulse is excessive and the blood is insufficient, this is called a reversal. If the pulse is small and there is a lot of blood, this is called a reversal. Excessive qi and coldness in the body can lead to typhoid fever. When qi is weak and the body is hot, it causes heatstroke. When there are many people in the grain but few in energy, they will lose some blood when they receive it, and dampness will reside in the lower part of the body. When there is less grain intake and more qi, the pathogen is in the stomach and affects the lungs. A small pulse with excessive blood indicates heat in the drink. For those with a large pulse and insufficient blood, there is wind in the pulse and water and fluid do not enter. This is what is meant by. "Solid" means that the qi has entered. Deficiency refers to the outflow of qi. When qi is abundant, it means heat. Qi deficiency is due to coldness. When entering the solid state, the left hand opens the needle and leaves it empty. Those who are weak. The left hand is closed and the outer space is empty.