Yin and Yang is a symbol of harmony and balance. The black part with the white dot, called yin and represents the feminine, passive principle and symbolizes north, cold, shade, soil and moisture. The white part with the black dot, called yang and represents the masculine, active principle, and symbolizes the sky, south, dryness and emperor. Everything in the world is made up of opposites. The day is the opposite of the night and can not survive without this. The activity can not go on without rest. Without the sun, there would be no shade. Yang thus stimulates Yin, and Yin nurtures mutually Yang. The Chinese call this way of thinking of the dialectical dualism. In Chinese philosophy, the concept of yin-yang is used to describe how seemingly opposite or contrary forces are interconnected and interdependent in the natural world; and, how they give rise to each other as they interrelate to one another. Many natural dualities (such as male and female, light and dark, high and low, hot and cold, water and fire, life and death, and so on) are thought of as physical manifestations of the yin-yang concept. Chinese Cosmology – Mythology – legends & myths: Cosmology = Yin and Yang What is cosmology? If you look it up in a dictionary under the word cosmology, we find that the word is composed of two Greek words; cosmos and logos. Kosmos means the world while logos means to speak or learn. So is cosmology doctrine of the world. More precisely, the term: the science of the universe, its origin, development and design. The word cosmology covers specifically the creation of the world, which plays a central role in cosmology.