To look where you haven't looked

There once was an Indian medicine man who made hunting maps for his tribe. When game got sparse, he'd put a piece of fresh leather in the sun to dry. Then he'd say a few prayers, fold and twist it, and then smooth it out. The rawhide was now etched with lines. He marked some reference points, and a new map was created. When the hunters followed the map's newly defined trails, they usually discovered abundant game.
Moral: by letting the rawhide's random folds represent trails, he pointed the hunters to places they had not looked.