In Traditional Chinese Medicine (TCM), Five Element theory (also called Wu Xing) is a powerful, foundational lens through which medicine, our bodies, and the world at large can be viewed. Fire, Earth, Metal, Water, and Wood are understood to be the Five Elements in TCM.
Each element is awarded a number of characteristics and correspondences. They all have their separate natures, movements, directions, sounds, times of the day, and much more. Similar to Yin Yang theory, many specific aspects of life and the world can be attributed to a certain element.
In Kyusho Jitsu this is linked with the 5 Element Theories Cycle of Destruction.