Yin-Yang – In the Eastern traditions, there are two forces in the universe: yin, the feminine, passive, cool, negative force; and yang, the masculine, active, hot, positive force. Yin and yang are based on the principle of balance and interdependence, a perfect system being evenly represented by both. They are a unified system, all things having yin as well as yang aspects, and their energy rules everything in the natural world. The overarching principle behind the Laws of Nature is the need to seek a balance-point–for every action, there is a corresponding and an opposing action. Life cannot exist and unfold without this balance. We need both.