All manifested reality is based on the interchange of these two basic primordial vibrations. I have substituted our words for these vibrations with more familiar words. We will refer to them as Yin and Yang. Yin is the first and primordial vibration or expression of energy, therefore it is the beginning and the ending of the loop of all there is. Yin lends part of itself to directional movement, and from that Yang springs forth. Yang springs from Yin in the interplay of the vibrations in a constant loop. Everything springs from nothingness and returns to nothingness, as Yang springs from Yin and returns to Yin.Â