How Do I Know God Really Exists?

"I'm an atheist; I don't need any religion to help me," were the words of a young pilot as he brushed off the chaplain's invitation to attend chapel.  The chaplain, however, held more than a half-dozen degrees including several from Oxford.  Not to be turned aside so easily, J. Edwin Orr asked, "Could I ask you a couple of questions?" Thinking this would be easy, the pilot said, "Sure, go ahead and shoot."