Yin-Yang Five-Phases Political Theory / 阴阳五行政治理论

Yin-yang five-phases political theory / 阴阳五行政治理论 is the source’s frame for how natural classification becomes political explanation. In 87.过年最适合聊玄学！探讨神仙方术发展史（未完待续）, yin and yang move from light/shade and environmental contrast toward broader paired categories, while five-phase reasoning develops through mixture, overcoming, generation, and dynastic virtue claims.

The concept is anchored by [[ZouYan|邹衍]]. The episode presents him as a key figure in joining cosmology to historical cycles, making later dynastic legitimacy and fangshu claims easier to formulate.

Key Claims

• Yin-yang and five-phase reasoning should not be treated as one finished theory from the beginning.
• Political use grows when natural categories become historical and dynastic categories.
• Five-virtue claims let rulers describe regime change as cosmic sequence.
• Later fangshu gains authority by borrowing this explanatory grammar.

Connections

• 87.过年最适合聊玄学！探讨神仙方术发展史（未完待续） - source episode.
• [[ZouYan|邹衍]] and [[WarringStatesPeriod|战国时期]] - intellectual setting.
• [[QinShiHuang|秦始皇]] - water-phase political example in the source.
• [[DongZhongshu|董仲舒]] - later Han Confucian-omen fusion.
• Mandate of Heaven Legitimacy / 天命合法性, Auspicious Omen Politics / 祥瑞政治, and Chenwei Politics / 谶纬政治 - political-theology extensions.
• Fangshu Systematization / 方术系统化 and Daoist Alchemy / 道教炼丹 - later system-building branches.