Think of a friend of yours whom I have never met and, for the sake of simplicity, let us say that his name is Michael. Let us also say that, for the moment, I cannot meet or talk to Michael. How would you prove to me that Michael exists? It is not enough to prove that "A man whom I would call Michael exists," for you must prove to me that this particular person exists, a person who stands so tall, has a certain color of hair, a certain color of eyes, a certain temperament, certain likes and dislikes, etc. How would you prove to me that your friend actually exists? Once you discover the method by which you can prove the existence of Michael, you will have also discovered the method by which we can prove the existence of the Christian God.