Jin, Mu, Shui, Huo and Tu refer to the five basic elements of the five elements of Chinese medicine. The five viscera refer to the heart, liver, spleen, lungs and kidneys, and the six bowels refer to the gallbladder, stomach, small intestine, large intestine, bladder and triple jiao. The five viscera and six bowels in the five attributes of wood is the liver, gallbladder; fire is the heart, small intestine; earth is the spleen, stomach; gold is the lungs, large intestine; water is the kidneys, bladder. 1. Gold has the characteristics of softness and rigidity, purgation and change, i.e. purgation, subduing, astringency and cleanliness. Lung main propagation and purging, the large intestine main transmission of dross, so both belong to the gold. 2. Wood has the characteristics of growth, development, smoothness, organization, the liver is the main drainage (the liver has the function of dredging the whole body’s qi), can be adjusted to smooth qi, organization of emotions, to help the spleen and stomach elevation and excretion of bile, gallbladder storage and excretion of bile, the main decision-making, so both of them belong to the wood. 3. Water has the characteristics of nourishment and downward movement, the kidney is the main water, the main gas, can regulate the metabolism of fluid, the bladder is the main storage and excretion of urine, so both are water. 4. Fire has the characteristics of warmth, ascension and upward movement, the heart is the master of the blood, the master of the mind, the small intestine is the master of the receptivity to the fullness of the compounds, the master of the secretion of the turbidity and the two belong to the fire. 5. Earth has the characteristics of biochemical, bearing, acceptance (acceptance of accommodation), the spleen is the main transport (the spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body), the main ascending, the stomach is the main acceptance, the main through the descending, and the spleen’s transport function is compatible with the water and grains can be made into the essence of the essence, with the production of the essence of the blood and fluid for the nourishment of the whole body, so the two belongs to the earth.