Repentance is not basically a religious word. It comes from a culture where people were essentially nomadic and lived in a world with no maps or street signs. It's easy to get lost walking through the desert. You become aware that the countryside is strange. You finally say to yourself, I'm going in the wrong direction. That's the first act of repentance.

The second act of repentance is to go in an alternate direction. It implies that you not only do this but you admit it to your companions. We all do this whether or not we realize it.