Different than the horoscope in the West, Chinese people put their fate at the hands of the YIN-YANG scholars as it is deeply rooted in the Taoism, they believed that there are two natural, complementary and contradictory forces in our universe.  Because humans are in charge of all the living species, therefore the third one is named Human. YIN represents the female, negative, darkness, softness, moisture, night-time, even numbers and docile aspects of things. YANG represents the male, positive, brightness, hardness, dryness, day-time, odd numbers and dominant aspects. YIN and YANG are continually in the state of flux and always looking for the BALANCE point. One moves , the other responses. 

These scholars also believed that our universe consisted of five basic elements, which are Metal, Water, Wood, Fire and Earth (Soil). Everything, including humans, in the universe (between Heaven and Earth) must have a relationship with these five elements. So they tried to apply the five elements not only to every physical thing in the world, but also to the Colors, Directions, Seasons and Sounds. They even applied to the Years, Months, Days, Hours, Minutes and Seconds of the  Chinese Calendar. People are able to know their five-element weights from their birth date and time. Based on the combination of these five-element weights plus the concept of the natural phenomenon, they can tell the rise and fall of human destiny (fate) cycle. The “element” in Chinese also means MOVEMENT, CHANGEABLE and DEVELOPMENT. If you want to be a lucky person, you have to move to an environment to bring your five elements into balance. 

For example, trees have their own growth cycle in between Heaven and Earth. Humans must have life cycles similar to those of trees. The seasonal changes affect the growth of trees. Trees grow faster in the spring and slower in the fall. The environmental changes also affect the life of trees. Without adequate sunshine, trees grow too slowly. Too much heat, trees will be dried out. Without water, trees cannot grow. Too much water, trees will be uprooted and afloat. Insufficient earth, tree will not grow tall….

The human life cycle is also affected by the same seasonal and environmental changes. The seasonal changes come from the Sun and Moon which are the clock for the calendars. The Chinese calendar is designed from Sun and Moon plus the Stem-Branch (concept from trees) cycle. Chinese YIN-YANG scholars have for thousands of years applied the Five Elements on the Chinese Stem-Branch calendar. This way humans get their Five Element weights using their birth date and time.

When the seasons and environment change, the Five Elements have certain responses. Humans respond in a similar way. The YIN-YANG scholars made predictions on the human life cycle, from birth to death, by using this natural phenomenon.