To begin, yin and yang is a popular Chinese symbol which simply means opposites attract and work together to make something beautiful. Yin and yang are two principles in Chinese philosophy. Yin means negative, passive, female, more "shady" principal in nature while yang is the exact opposite. Yin can be anything dark, from the classic black, fire, to the moon. Yang like I said before means the exact opposite with the color being white, water or the sun. Yin and yang has been along for a long time in Chinese history and will probably be around for much longer. Yin and yang can always be used to describe opposites and show that somehow they are connected.