Great Strength

Thunder sounding through open sky is this hexagram's image: heaven's own force amplified further, a run of momentum with almost nothing standing in its way. It marks a stretch where your position is genuinely strong — resources, standing, or leverage that would have looked out of reach not long ago. But the guaci's advice to persevere rightly is a pointed qualifier: strength this concentrated tends to overreach, mistaking what it can do for what it should do.

The classical record on this one splits close to even, which reads less as a caution against acting and more as a caution about how you act. This is a position worth staying in and building from — the move is to keep pressing while the advantage holds, not to retreat from it. But hold it on fair terms: strength used to force weaker parties or shortcut the rules tends to draw exactly the resistance it was trying to avoid.