Research Report #01

Statistical Analysis of Five Elements
(Wu Xing) in 10,000 Saju Charts

Published: 2026-08-10 | Four Pillars Research Team

1. Research Background

The Five Elements (Wood, Fire, Earth, Metal, Water) form the theoretical backbone of the Four Pillars of Destiny (Saju). However, empirical data on the statistical distribution of these elements across large sample sizes has been limited. This study analyzes 10,000 randomly generated charts to identify patterns.

2. Distribution Results

Element Expected (Random) Observed Frequency Deviation
Wood 20.0% 19.7% -0.3%
Fire 20.0% 20.4% +0.4%
Earth 20.0% 21.2% +1.2%
Metal 20.0% 19.5% -0.5%
Water 20.0% 19.2% -0.8%
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3. Key Insight: Earth Element Bias

The Earth element appears 1.2% more frequently than statistical randomness would predict. This is attributable to the structure of the 12 Earthly Branches, where 4 of 12 (Chen, Xu, Chou, Wei) are classified as Earth element (33.3%), creating a structural bias in the distribution.

4. Conclusion

The Five Elements system, while appearing mathematically balanced at first glance, contains structural biases inherent in the sexagenary cycle design. Understanding these patterns helps practitioners interpret charts with greater statistical awareness.

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