Wrapping up the Yin Yang series with this hypnotic image.
Enjoy!
Enjoy!

| Yin is the female passive intuitive receiving force | Yang is the male strong creative force | |
|---|---|---|
| Associated with the earth | Associated with heaven | |
| The earth is the source of all physical life | The heavens are in motion and bring about change | |
| Yin is associated with the following properties | Yang is associated with the following properties | |
| Night | Day | |
| Dark | Light | |
| Rain | Sunshine | |
| Water | Fire | |
| Cold | Heat | |
| Winter | Summer | |
| Autumn | Spring | |
| Odd Numbers | Even Numbers | |
| The Moon | The Sun | |
| North | South | |
| West | East | |
| Right | Left | |
| Down | Up | |
| Intuition | Intellect | |
| Passive | Active | |
| Static | Dynamic | |
| Contraction | Expansion | |
| Decreasing | Increasing | |
| Conservative | Innovative | |
| Traditional | Reformative | |
| Valley | Mountain | |
| River | Desert | |
| Curve | Straight Line | |
| Soft | Hard | |
| Solidifying | Dissolving | |
| Psychological | Physical | |
| Astral | Observable | |
| Dragon | Tiger | |
| Kidneys Heart Liver Lungs | Bladder Intestines Skin | |
| North side of a hill | South side of a hill | |
| Away from the sun | Toward the sun |
This well known Chinese Yin Yang, sometimes called the Tai-Chi symbol, is actually from the I Ching. The I Ching is more than a simple divination tool, it is also the greatest foundation of Chinese philosophy. It’s development is from the natural phenomena of our universe.
The original Chinese character of is a symbol combining the sun (top) and moon (bottom). It's easy for people to understand the philosophy by talking about the sun (Yang), moon (Yin) and universe. The ancient Chinese studied the universe and the world around them. They took note of the seasonal and annual cycles.
By observing the sky, and recording the position of the Big Dipper and watching the shadow of the Sun from an 8-foot (Chinese measurement) pole, ancient Chinese determined the four directions. The direction of sunrise is the East; the direction of sunset is the West; the direction of the shortest shadow is the South and the direction of the longest shadow is the North. At night, the direction of the Polaris star is the North.
When observing the cycle of the Sun, ancient Chinese simply used a pole about 8 feet long, posted at right angles to the ground and recorded positions of the shadow. Then they found the length of a year is around 365.25 days. They even divided the year's cycle into 24 Segments, including the Vernal Equinox, Autumnal Equinox, Summer Solstice and Winter Solstice, using the sunrise and Dipper positions.
The ecliptic angle 23 26' 19'' of the Earth can be seen in this chart.
By rotating the Sun chart and positioning the Winter Solstice at the bottom, it will look like this . The light color area which indicates more sunlight is called Yang (Sun). The dark color area has less sunlight (more moonlight) and is called Yin (Moon).
Yang is masculine. Yin is feminine. Yang wouldn't grow without Yin. Yin couldn't give birth without Yang. Yin is born (begins) at Summer Solstice and Yang is born (begins) at Winter Solstice. Therefore one little circle Yin is marked on the Summer Solstice position. Another little circle Yang is marked on the Winter Solstice position.
These visual attributes of the Taiqi (Yin Yang) Symbol are meant to remind the Daoist practitioner of the essential nature of Yin and Yang -- and, by extension, of all pairs of opposites. Rather than being distinct, fixed and/or rigid categories, Yin and Yang are mutually-supportive, mutually-arising, inter-dependent, and in constant motion. Each contains the essence of the other, and they are continuously transforming one-into-the-other. So, for instance: friends become enemies, and enemies become friends; summer becomes winter, and winter becomes summer; from the lowest of plains pushes up the highest of mountains, and the highest of mountains, over time, recede once again to flat plains; external action, taken to its extreme, transforms into quietude; and from the depths of stillness, movement quite naturally emerges.