The one speaking is not a distant figure in the sky. It is the deeper center of a person, present from the start and never hidden. It has always spoken through dreams and the events that seize us, though the waking mind rarely listens.
"Come near and hear" is the call to turn inward at last. Anyone who does finds this center was already there at every turning point, shaping a path they thought they walked alone. So when a person feels "sent with his Spirit," it means this inner center has finally taken hold and moved them to act.