TCM asserts that in order for the body to be strong and symptom free, the body’s energy must be balanced. This body energy, also known as Qi (chee), is summed up into two categories: Yin and Yang. The Yin energies are characterized by water and, as such, are believed to be cooling, lubricating and nutritive. Conversely, the Yang energies are characterized by fire and are warming, consumptive and defensive. Disease processes occur when the Yin and Yang of the body are not equal. This imbalance will impede how the energy of the body will flow and symptoms, both physical and mental, will be experienced.
The body is composed of many systems. Each of these systems are believed act as avenue of transport. The circulatory system moves blood, the digestive system moves nutrients and the nervous system moves electrical impulse, just to name a few. TCM acknowledges the existence of yet another system: the meridian system. This system acts as a vessel for the body’s Qi.
When illness prevails it is because the body’s Qi is unable to flow freely, strongly or smoothly.