Living on Old Merit

The third line shifts the hexagram's register from open contest to a quieter form of endurance: living on the merit of old virtue, holding firm even though the position itself is precarious, eventually brings good fortune. The line text ties that fortune to a specific condition, following a superior cause rather than claiming one's own achievement, which reframes what firmness means at this point in the hexagram. It is not the firmness of a party pressing a claim, but the firmness of someone who has chosen to rest on an established, inherited standing rather than assert a new one, even while the ground beneath that standing is genuinely unstable. This is a subtler counsel than either of the two lines before it, neither retreat nor contest but a kind of patient occupation of a difficult place, sustained by something other than one's own present effort.

Read within Conflict as a whole, a hexagram largely concerned with when to fight and when to yield, line three adds a third possibility: holding a position not because it is secure but because deference to something larger than one's own claim is itself the safest ground available. The hexagram elsewhere distinguishes sharply between firmness that presses a claim and firmness that simply endures, and this line belongs entirely to the second kind, a distinction the text treats as decisive for whether contention ends well or badly.