Yue Po

In Liuyao divination, the "Month Branch" represents the macro-environment, seasonal energy, or broader trend. 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 under pressure from the overarching environment and its strength should be discounted.

If you are divining about a career or a project, and the line representing your goal suffers Month Rupture, it is often a serious obstacle. It means the timing may be wrong, and the effort is fighting against the macro-trend. However, if the "Ruptured" line represents an enemy or adverse health-related symbolism, traditional readers may treat it as a sign that the adverse factor is being weakened.