Sharks swim from one end to the other but dont touch the glass wall of the tank. One day the keeper moved the wall a few feet away. Instead of swimming up to the new barrier, the sharks turn away before they hit the old wall.
We stay inside of invisible barriers because we assume that they exist. What if they dont? What if you have much bigger tank to swim in? You'll never know if you train yourself to follow a narrow set of habits because these will act like invisible barriers.
Cattles wont cross a road that has metal grate because their hooves get caught in them. Someone decided to paint a picture of the grate. The cattles stay on the other side of the road parmanently.
Once we feel hurt by an experience, we dont return to it. The minute we get near anything that smells of our old hurt, failure or humiliation, we veer away.
-- Teen Ask Deepak: All the Right Questions By Deepak Chopra