The term means that the lung governs respiratory qi and qi in the whole body. The lung governing respiratory qi means that the lung is the respiratory organ of the body and it governs respiration, which is the manifestation of lung’s functions of dispersion, depuration, and descent in respiration. Through the lung’s function of dispersion, turbid qi is exhaled, which makes inhalation of fresh air possible. Via its functions of depuration and descent, the lung can deeply inhale the fresh air in nature. The lung governing qi in the whole body means that the lung governs and regulates the generation and movement of qi in the whole body. If the dispersion, depuration, and descent functions of the lung are in harmony, breathing will be regular, rhythmic, and harmonized.