The theory of the five elements (fire, earth, metal, water & wood) is an important system in Chinese acupuncture. On the front side of this Small Chart, a diagram illustrates the points used in acupuncture according to the five elements & their place on the extremities of the body. On the back is a very clear & complete table with the correspondences of the elements, such as life stages, seasons, time of day, tastes, activities & emotions.