Essential to traditional Chinese Feng Shui is the understanding of yin and yang. From the Tao “the way” and Taoism comes the concept of yin and yang. Everything is considered to be either of Heaven or Earth.
Yin-Yang are opposites
They are either on the opposite ends of a cycle, like the seasons of the year, or, opposites on a continuum of energy or matter. This opposition is relative, and can only be spoken of in relationships. For example: Water is Yin relative to steam but Yang relative to ice. Yin and Yang are never static but in a constantly changing balance. They are the two opposing yet harmonious forces of the universe.
Without dark there is not light
Without heat there cannot be cold
Without death there can be no life
Together their movements create a whole. The yin/yang symbol, therefore, contains a dot of yang within the yin and a dot of yin within the yang.
For good Feng Shui, yin and yang must be in balance. If an area is too yang – take away some yang or add some yin. If an area is too yin, take away some yin or add some yang. For an example if an area is too dark add light or if an area is to bright in colour then tone it down with darker colours.