Xun Kong

Void begins as a calendar lookup: two branches are unused in the current ten-day cycle. Liuyao then interprets the affected line’s state. A supported but temporarily void line may be read as indicated yet not presently effective, awaiting a calendar condition; a weak, damaged line is assessed differently. Bazi shares the lookup, not every Liuyao timing rule.

A ten-day xun pairs ten stems with ten of the twelve branches. Void pairs are Jia-Zi: Xu/Hai; Jia-Xu: Shen/You; Jia-Shen: Wu/Wei; Jia-Wu: Chen/Si; Jia-Chen: Yin/Mao; Jia-Yin: Zi/Chou. Bazi commonly uses the Day Pillar, sometimes also the Year Pillar; Liuyao usually uses the casting day to check line branches.

Jia-Zi and Gui-You belong to the same xun and both use Xu/Hai as void. Leaving that cycle is leaving the void; meeting a day with the same branch as a void branch is filling it. These are different calendar conditions. Liuyao then separately checks strength, movement, clashes and combinations.

Constructed example: on Jia-Zi, select a Xu-earth Parents line for documents. Establish Xu as void, then check calendar or moving-line support. A supported line raises the question of something indicated but not yet effective; a line also broken and controlled needs a different assessment rather than a simple completion-on-exit formula.

The next Yi-Chou day remains in Jia-Zi’s xun. On Jia-Xu the old cycle has ended and Xu also matches the day. Cycle exit and branch arrival coincide here, but remain distinct conditions.