Religion and Faith

I haven't thought about my paper since I came here... Today, I tried to think about its theme. What do I want to write?
I am really interested in Christianity, that is why I have been going many church since I came here. But I can't understand what I want to write in my paper. I talked with my host father about that. He asked me if I knew the difference between Religion and Faith." Of cause, I didn't know about that.
He asked me, "Why do you go to church?" I replied him, "Because I am interested in Christianity." "Do you want to believe the God?" "To be honest, not actually." "So, you want to know about Christianity, don't you?" "Yes." "It's a religion which you want to know about. It's not faith. You can study about a religion, while you can't study any faith."
According to my host father, "Faith" is someone's trust itself. If I study the Bible hard, I will not understand about the Faith, because I don't search it by myself. Maybe I have confused Religion and Faith. Anyway, it is quite difficult problem for me.