A little boy is afraid of darkness. To overcome the fear, he decides to lock himself in a room full of darkness. Everyone else will obviously think he's crazy not knowing the reason for his actions. If and when he finally decides he's not scared of the dark anymore and he's ready to go out, it'll take him a long while to adjust to the light outside of the room. Or worse, he'll decide he likes the dark better than the *light.
I wrote this a few months ago when a friend of mine needed advice. If you can relate it to any event in your life...