32: Hêng

Duration arises not from rigidity but from the marriage of persistence and adaptability. Like thunder that follows wind, true constancy maintains its essential character while responding to changing conditions. This hexagram reveals the secret of all lasting things: they endure not by resisting change but by changing in accordance with their deepest nature. The oak survives the storm by bending; the river carves canyons by following its course through countless obstacles. To embody duration requires discriminating between what must remain fixed and what must flow. The core principles that define one's character or purpose - these are held constant. The methods, responses, and external forms - these adapt as circumstances require. Without this discrimination, one either becomes brittle through excessive rigidity or dissolves through lack of center.