But how can believing in God without a persuasive argument be rational? We can arrive at the answer by looking at how we ordinarily believe things in our everyday lives. 

"Take, for example, the computer in front of you right now," writes Mitch Stokes in A Shot of Faith (to the Head): Be a Confident Believer in an Age of Cranky Atheists.  "You no doubt believe that there is a computer in front of you. And you would be irrational if you didn’t. Similarly for most of your fundamental beliefs, like your belief that you had breakfast this morning." 

But -- and this is a crucial point -- "you didn’t believe these things by way of an argument," he writes. Rather, you just found yourself believing.