Yue Po

In Liuyao divination, the "Month Branch" represents the macro-environment, seasonal energy, or national trends. If a hexagram line's earthly branch is directly clashed by the Month Branch (e.g., casting a hexagram in the Rat month, and having a Horse line), that line suffers from "Yue Po" (Month Rupture). It means the entity represented by that line is being crushed and denied by the overarching environment.

If you are divining about a career or a project, and the line representing your goal suffers Month Rupture, it is often a devastating blow. It means the timing is fundamentally wrong, and you are fighting against the macro-trend. However, if the "Ruptured" line represents your enemy or a disease (e.g., the Authority line when asking about health), this is incredibly auspicious—it means the disease or enemy will be completely eradicated by external forces.