The theoretical basis for divination, especially traditional Chinese divination such as the Four Pillars and Eight Characters, is mainly rooted in ancient philosophical thought and long-term observation and summarization of natural laws. The following is a detailed explanation of the theoretical basis for fortune telling prediction:

1、 Yin Yang and Five Elements Theory
The theory of Yin Yang and Five Elements is the core theoretical basis for predicting destiny. The theory of yin and yang holds that all things in the universe are composed of two basic elements, yin and yang. Yin and yang are opposed, interdependent, and transformed into each other, which is the fundamental driving force for the development and change of things. The theory of the Five Elements categorizes all things in the universe into five basic material forms: metal, wood, water, fire, and earth. They interact and restrain each other, forming a complex relationship of interconnection and mutual restraint among all things in the universe.

In numerology, the theory of Yin Yang and Five Elements is used to explain human destiny. Based on a person’s birth year, month, day, hour, and other information, their Eight Characters (i.e. the combination of heavenly stems and earthly branches) can be determined, and their Five Elements attributes and Yin Yang balance can be analyzed. By studying the relationship between yin and yang and the five elements, one can infer information about a person’s personality, health, career, financial luck, and other aspects.

2、 The philosophical ideas of the Book of Changes
The Book of Changes, as an important philosophical work in ancient China, has had a profound impact on the study of destiny. The yin-yang theory, the concept of rigidity and flexibility, and the philosophical idea of “unity of heaven and man” in the Book of Changes provide theoretical support and methodological guidance for the study of destiny.

Yin Yang theory and the concept of rigidity and flexibility: In numerology, the heavenly stem is yang and the earthly branch is yin. The heavenly stem actively governs rigidity, while the earthly branch governs tranquility and flexibility. Through the interaction and changes of the heavenly stems and earthly branches, one can infer the auspiciousness, misfortune, and fortune of human destiny.
The philosophical idea of “unity of heaven and man”: Destiny theory holds that human life is closely related to the universe and nature, and human destiny is influenced by various factors such as natural environment, astronomy and astrology. Therefore, when predicting fate, it is necessary to comprehensively consider the three talents of heaven, earth, and man, as well as natural laws such as the changes of yin and yang in the four seasons.
3、 Long term observation and summary of natural laws
Destiny is not a fabrication, but a natural law based on long-term observation and summarization. For example, by observing the changes in astronomical stars, people have found that people born at different times have different energy distributions and destiny characteristics of the Five Elements. This process of observation and summarization gives numerology a certain degree of accuracy and credibility in predicting fate.

4、 Other related factors
In addition to the theory of yin and yang and the philosophical ideas of the Book of Changes, fortune telling also involves the influence of various factors such as feng shui and magnetic fields. Although these factors are difficult to fully explain with modern scientific theories, they are widely applied in the practice of fortune telling and are considered one of the important factors that affect human destiny.

The theoretical basis for predicting destiny mainly includes the theory of yin and yang and the five elements, the philosophical ideas of the Book of Changes, and the natural laws summarized through long-term observation. These factors interweave and influence each other, together forming a complex system of destiny prediction. However, it should be noted that fortune telling is not a panacea, and its predictive results are influenced and constrained by various factors. Therefore, when using fortune telling for prediction, it is necessary to maintain a rational and objective attitude, and analyze and judge based on actual situations.