Obviously inorder for you not to believe is not to exist. You could ask yourself that "I don't have a brain" and go on believing that you do not have a brain. Unless someone opened up your skull and gave you the brain to see to believe that you really have a brain. God expresses himself clearly that inorder to know more of him he asks us to come to him, seek him, and find him. Come to me and learn more about me. If I wanted a boy/girl friend bad enough wouldn't i make all means and ways possible to make myself know to that person. Think about it. Would it be me that is not seeking?
Unless you seek God, you will find him. God will reveal what is necessary for us to know about him. Not more than what we might not handle.