So you've just been confronted with every single "insignificant" evil act you've ever committed. All of your secrets have been taken from the deepest, darkest section of your soul and shown to you from the perspectives of the victims, the onlookers, and the passersby. You have been shown this, over and over, for a seeming eternity until something in your mind clicked.
"Maybe I was wrong."
Your ego-centric view of the world has been shaken and you can't really go back to living life as you once did. A small, shaky, feeble voice has awakened in your head, and it refers to itself as your conscience. Given the "tone" of this voice, you would normally crush it for being weak... but the memory of all the horrible things you did, and the suffering that it caused, makes you pause and consider listening to it for a change. Perhaps this will be the first step to your redemption: To listen to something that you once considered weak, instead of oppressing it.
And now that you've been restored to a body and given a new lease on life, and you're lost. The world seems newer, brighter, more frightening without your bluster and arrogance acting as a shield. But there's this guy, the one that cast the spell on you in the first place. Maybe, after having spent all this time to help you, he's willing to help give you a few steps into world.
After all, you've just gotten the chance to start again. Who's to say that this guy hasn't got the right idea? Maybe his example wouldn't be so bad to follow after all.