"Five elements of qi", gold, wood, water, fire and earth.
Corresponding to the "five virtues": benevolence, righteousness, courtesy, wisdom and faith.
Later extended to:
① Five flavors: fishy smell, burnt smell, fragrance, fishy smell and putrid smell. Su Wen's six paragraphs on dirty images: "Heaven eats people with five qi." Zhang Jingyue's note: "People who eat five qi in the sky are ashamed of entering the liver, rushing into the heart, fragrant in the spleen, offending the lungs and rotting in the kidney."
(2) refers to the five elements of qi, namely gold, wood, water, fire and earth. "Su Wen's Six Stages of Dirty Images": "Five devices stand together and each has its place."
③ Emotional activities of the five internal organs, namely joy, anger, worry, sadness and fear. "Su Wen Yin and Yang should be like a big theory": "People have five internal organs and five qi to create emotions."
④ Five colors of qi, namely green, white, red, black and yellow. Su Wen Acupuncture Theory: "Five Qi Keep Sound." It means that the internal changes of the five internal organs are reflected in the five colors outside. Green gas leaves the liver, white gas leaves the lungs, red gas leaves the heart, black gas leaves the kidney, and yellow gas leaves the spleen. Observing the five colors can observe the changes of the five internal organs.
⑤ rustic. The soil is in the center, and the five are behind, hence the name.
⑥ refers to the transformation of five flavors into qi. "Jing Lei" Volume 16: "Five qi, five flavors also melt."
⑦ refers to the qi of the five internal organs. Qi refers to the functional activities of viscera. "Zhou Li Tian Guan Ji Yi": "Five Qi, Five Tones and Five Colors, I will die." Zheng Xuan's Note: "Five Qi, the vent of five internal organs. Lung qi is hot, followed by heart qi, liver qi is cold, spleen qi is warm, and kidney qi is cold. "
⑧ TCM refers to five qi: cold, summer heat, dryness, dampness and wind. Su Wen's Six Zangxiang Theory: "Heaven eats people with five flavors, and the earth eats people with five flavors. Five qi enters the nose and hides in the heart and lungs. " "On the Essentials of Four Diagnoses": "There are five qi in the sky, eating people into the nose and hiding in five zang." Note: "Heaven eats people with wind, heat, humidity, dryness and cold, and enters through the nose."