The Secrets of Chinese Astrology
By Derek Walters
Yin and Yang
The Yin and Yang theory of opposites, despite being a concept more than three thousand years ago, is actually the principle on which all modern physics is founded.
Everything, whether, material or abstract, has an opposite. If it didn’t, it wouldn’t exist. More than two thousand years ago the philosopher Lao Tse used a cup to illustrate the principle: the material of the cup was Yang, the inside of it Yin. Although there was nothing inside the cup but space, if the space wasn’t there it would have no use as a cup.
The terms Yang and Yin originally referred to the sunny and shaded sides of a hill. Because in ancient times men worked in the fields, in the sun, and the women indoors, in the shade, the terms also came to mean male and female. The expression has expanded to mean all kinds of energy: physical, biological, and emotional Yang is outgoing, Yin is receptive. They are equivalent terms to positive and negative, or plus and minus, but without any connections to good and bad.
When examining a horoscope chart, a Chinese astrologer likes to see a good balance of Yang and Yin in the signs, in the same way that a Chinese doctor identifies various ailments as the result of an imbalance of Yang and Yin.
The term Great Yang is still used in modern Chinese to mean the Sun itself, while the Moon, less commonly, is referred to as the Great Yin. Thus the standard calendar based on the seasons is known as the Yang calendar, while the Chinese calendar based on the Moon is usually called the Yin calendar.