Ancient people knew very well how to use the strong energy of the Moon. There has always been something magical about New and Full moon. People used to prepare rituals and cleansing processes, each phase of the cycle was respected and worshiped. In these days, people think about the Moon phases only in a moment, when they get a headache at Full moon.
The Sun and the Moon play important part in chinese medicine, taoism, buddhism and yoga systems. All of the philosophies share the same idea, that everything in this world is created by two counterparts make balance together. On the one side, there is the Sun, the masculine principle, activity, light and the power of Yang. On the other side, there is the Moon, the feminine principle, passitivty, darkness and the Yin element.