If you can't see God or hear his voice talking to you....how can you be sure that he's even real? Gotta believe in what you can see, touch, smell, hear, and taste. Everything else is nothing more than just legends and morality stories. Besides, if a man claims to be God (or even the son of God) today you wouldn't worship him, you'd call the Police to have him comitted to a mental hospital, yet people worship a man that lived and died 2000 years ago who claimed to be just that. So why not form a religion around all the crazy men who make the same claims???