When I re-entered the U.S. after my Norway trip, I waited in a large room with several hundred passengers from various other flights while the customs agents checked passports. At one point there was a commotion on the far side of the room, and everyone turned to see what was happening. That's how crowds work. Individuals spontaneously respond to the movement of the crowd. If the crowd starts going in one direction, most everyone goes along.
Crowds have a natural momentum.
Sincere spiritual leaders constitute a sort of crowd. Our sincere, almost desperate search for what God is doing can easily be swayed by the momentum of those around us. When several leaders are led in the same direction, or when an especially visible flow of grace manifests in the ministry of other leaders in the crowd, a movement develops. That activity can be very compelling to the rest of us who are a trifle unsure whether or not we have been correctly following our directions from God. We don't want to miss God, so when many people seem sure about the direction they are to take, we are tempted to abandon the uncertain directions in our own hearts in order to follow the more certain-seeming directions that they are following.