Narnia was a huge part of what brought me back to God after I'd sort of turned to satanism and then atheism. I actually didn't want to go back to God. I read the space-trilogy and I read the Narnia-books and suddenly I realized I was back. It had sort of surprised and overwhelmed me.
The Narnia books encouraged me to imagine heaven, to think about what it could be like and to, in my mind, let it become a place where I'd like to be.
I'd heard that God loved me, but I'd never felt that love and I'M not sure whether I actually believed the love-part. Obediece, yes, and many rules and things I wasn't allowed to do, but God really loving me was a thought I couldn't really grasp. Aslan made it real and sometimes when I'm feeling really, really bad, I imagine going to heaven and running into God's arms and never letting go again. Sorry, I know this sounds terribly childish.