Nine at the top is the resolution of Standstill and reads as straightforward relief. As a changing line it tells a querent that a closed, obstructed period is genuinely over rather than merely easing, and that what follows it is joy. The commentary supplies the reasoning a querent most needs at the end of a hard stretch: an obstruction that has run its full course cannot be prolonged, so the recovery does not depend on continued effort in the way the fifth line's did.
Flipping this firm stroke to yielding changes the upper trigram Qian into Dui, lake, and lake over earth gives Gathering Together, King Wen 45, a hexagram about people assembling around a center once there is something worth assembling for. The transformation reads as the natural next question. When the closure lifts, the dispersal it caused becomes reversible, and the figure that follows is the one that describes coming back together rather than simply being unobstructed.
A reading landing here counsels the querent to treat the ending as real and to act on it socially. The companions who withdrew together at the first line, root by tangled root, are the same people the transformed hexagram gathers, and the joy named here is not solitary. What was closed has opened, and the fitting response is to reassemble rather than to go on behaving as though the obstruction were still in place.