Yin-Yang

     The Yin-Yang symbol that I'm sure you are familiar with, is a Chinese symbol representing an ancient understanding of the way things work in life and the world.  The Both the Yin (black) and the Yang (white) are encompassed by a outer surrounding circle which represents "everything".  The black and white tear drop-ish shapes represent the interaction between two forces of energy, call "yin" and "yang".  The Yin is the darker, passive, weak, cold energy, while the Yang is the bright, expanding, strong, and hot energy.  They both have a dot of the opposite color inside of them, which symbolizes that everything is not simply black and white, that they need each other to exist, and they are as much a part of each other as they are a part of "everything".  They curve into each other and form in a way that suggest they are never ending, always moving and shifting and growing.