The Army, Line 5

The fifth line occupies the ruling position of the hexagram, and its counsel returns directly to the question of authority the whole hexagram is built around. When game enters the field it is right to catch it, the line says, framing the campaign as a justified response to a real provocation rather than an unprovoked action, but it adds a pointed condition: command should rest with the elder, capable son rather than be shared with the inexperienced, or disorder follows even a just cause. This is a striking admission for the line occupying the ruler's own seat, that rightness of cause is not sufficient on its own, and that the ruler's proper role here is to recognize and defer to genuine capability rather than to exercise command personally or divide it among the untested.

Read together with line two, the sole firm line in the hexagram, this line effectively names where real authority belongs, the capable commander rather than the ruling position itself, and warns that even a fully justified campaign can still end in disorder if that authority is not concentrated correctly. The line's honesty about its own limitation is unusual within the sequence generally, where the ruling position is more often praised without qualification, and it marks Hexagram 7 as particularly concerned with the difference between holding authority and being fit to exercise it.

Because the ruler at this line is yielding rather than firm, real command must be delegated to the one line in the hexagram capable of holding it, the firm second line. A yin stroke occupies the ruling position, a notable mismatch by the standard rule that expects firmness at this station, and the line text addresses that mismatch directly rather than concealing it. This is one of the clearer examples in the whole system of a hexagram naming its own structural imbalance and prescribing the remedy within the line text itself.

When this line changes, the central stroke of Kun becomes firm, turning the upper trigram into Kan, so that Kan now stands both above and below. The resulting hexagram is Number 29, The Abysmal, water doubled, an image of danger repeated and compounded rather than resolved. That the ruler's own weakness, if it changes without the capable hand described in the line text actually holding real authority, doubles the danger already present in the lower trigram rather than easing it, is a direct structural argument for exactly what the line insists on: command delegated to genuine capability, not asserted by right of position alone. This is one of the more direct structural warnings in the whole set of sixty four hexagrams, tying a specific delegation of authority to the avoidance of a specifically doubled danger rather than to any general moral principle.