The Theory of Yin and Yang is one such philosophy. It is said to date back nearly 6,000 years to the third or fourth millennium B.C. and is attributed to an enlightened philosopher named Fu Shi (also credited with creating the I-Ching or Book of Changes). The basic premise of yin and yang is the notion that the only constant factor in natural phenomena is universal change. In other words, nothing remains the same; no disease, no condition, no emotion, no treatment or diagnosis, absolutely everything is in a constant state of flux and, therefore, subject to the laws of change.

Yin and Yang are metaphorical images used to express these constantly transforming interactions. They have no fixed, precise definition. Rather, they describe two broad categories of complementary concepts which include the relationships of positive and negative, dynamic and inert, creative and destructive, gross and subtle, and kinetic and potential. This is quite similar to the notion of dialectics as expressed in Western philosophy. Within dialectics the whole is the sum of its parts and in turn part of the sum of a greater whole. As these various components interact, things become their opposites; i.e., variables become constants, causes become effects, and the process of creation leads to destruction. Furthermore, this idea is demonstrated in modern physics where sub-atomic interactions are the result of ever shifting polarities and constantly vacillating magnetic attractions and repulsions. 医 学 全在线www.lindalemus.com

The entire universe may be viewed as the interplay and alternation of yin and yang. Originally the Chinese characters for yin represented the moon and yang represented the sun. Gradually these terms were broadened to include yin as night and yang as day, yin as winter and yang as summer, and yin as female and yang as male. In fact, there is nothing which cannot be viewed from the standpoint of yin and yang.

Yin is that which maintains and endures, it is nourishing and supports growth and development as well as being something contracting and moving inward. It also includes the following:

• Earth
• Autumn
• Cold, coldness
• Moisture

Yang is that which is creative and generating, it develops and expands; it is dynamic and full of movement. It also includes the following:

• Heaven
• Spring, summer
• Heat, warmth
• Dryness

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