What does 1 Samuel 9:20 mean?

'As for those donkeys you lost three days ago, don’t worry about them—they’ve already been found. But what’s really important is that all Israel’s hopes are focused on you and your family.' 1 Samuel 9:20 - Modern Text Bible

(Samuel reassures Saul about the lost donkeys, but then drops a bombshell: Saul is at the center of Israel’s future. This is way bigger than a search for animals.)