Imagine yourself driving in an expressway. It was peachy and fine until you took wrong exit. You realized that and you get all messed up. Everything seems wrong. You looked like an imbecile who's trying to drive a car.

Expressway is a life journey. Wrong exit means wrong decision you'd made in your life. Hence, exit means decision in your life here. What Allah will do to you (in the driving-a-car-in-an-expressway metaphor) in order to get you to the right exit?

He gives you an accident.