頤 → 夬

Commentary

Mountain over thunder opens toward lake over heaven — Breakthrough, where accumulated waters burst upward to the sky. The gate of joy and the door of blessing overflow; silk and cloth pile up in blazing abundance. Day by day wealth accumulates, and the treasury rivals a state's. Nourishment here reaches its most material apotheosis: the mouth that is properly governed generates endless surplus. From Nourishment to Breakthrough, the transformation surges: what the mountain carefully stored now breaks through all restraint, flooding upward like the lake ascending above heaven. The decisive moment of Breakthrough carries nourishment past mere subsistence into spectacular abundance, though the hexagram's own warning — 'the gentleman distributes bounty below' — hints that hoarding invites reversal.