Well my opinion is that most people believe only what they see. But there's also air you breath, but you can't see it, still, most people believe it's true.Let me tell you, angels, demons and God are also true, but you can't see them. Please, don't discard any opinions before you have found out whether they're true or not. At first I denied Jesus, but when I found out who he really is and the things he has done in my life, which I've seen by my on eyes and heard by my own ears, I can't deny Him anymore. But it's wrong to force anyone to believe! It's your own choice...(sorry for my bad english)