Nine at the top, as a changing line, marks the moment restraint completes itself, the rain that the Judgment's gathering clouds had promised finally falling. A reading on this line suggests that whatever has been slowly held back through the hexagram's course is now released, and it carries Legge's own caution that continuing to insist on firm restraint once the work is actually finished can turn a virtue into a danger, particularly for whoever keeps holding the position past its use.
Flipping this line changes the upper trigram from Xun to Kan, Water, giving Kan over Qian, the hexagram called Waiting. The rain that has just fallen becomes, on the far side of change, the hexagram's own governing image, water gathered above heaven, the picture of nourishment anticipated with confidence rather than restraint finally spent. The movement is from an accumulation that has reached its limit toward a condition that has learned to wait for what has not yet arrived, the same patience turned toward the future instead of the past.
As the final line of Small Taming's arc, this position is where the entire hexagram's theme resolves, the small holding back the great for exactly as long as it takes for that force to be released rather than suppressed. A reading falling here points to release rather than further restraint, and to the waiting that properly follows a completed accumulation rather than one still building.