Qi is said to flow through meridians, or pathways, in the human body. These meridians and energy flows are accessible through 350 acupuncture points in the body.
Illness is said to be the consequence of an imbalance of the forces. Inserting needles into these acupuncture points with appropriate combinations is said to bring the energy flow back into proper balance.
Fortunately for us westerners today, acupuncture is one of the most popular practices of traditional Chinese medicine. Acupuncture has been practiced for thousands of years and continues to evolve.