The Yin Yang Symbol

Yin and Yang represent the dual polarities in life. Yin is the feminine polarity and Yang the masculine polarity. The (Yin-Yang) symbol represents the ancient Chinese understanding of how things work..

The circle that represents the whole is divided into Yin (black) and Yang (white) halves – two polar complements in harmonious balance. The two smaller circles in the centres (the eyes), shaded in the opposite colour, illustrate that within Yin there is Yang, and vice versa. Yin and Yang contain within themselves, at their very centres, the seeds of change. The curve dividing them indicates that this change is dynamic and continuous. Each half invades the other half and establishes itself in the centre of its opposite. - Simmone Kuo

The black and white dots/circles represent that nothing is absolute – that within the Yin, there is a bit of Yang, and within the Yang, there is a bit of Yin.