Qi is associated with the Spleen and Lung. Blood is associated with the Liver, Spleen and Heart. Yang is associated with the Kidneys. Yin is associated with the Liver and Kidneys. The Qi is the activating component of the body's metabolism.
Blood is the nourishing and structural component.
Yang is the activating force of the Qi . Yin is the fluid and moistening influence. All of these functions must be in harmony for the physical, energetic, emotional and spiritual aspects of human beings to be healthy and balanced. Any imbalance results in symptoms of some type. Do not take tonic herbs in any acute illness or if extremely weak.