Here he explains the beginning of the process:
I am more than a presumably rational individual. I was a champion of atheism who gave arguments in favor of atheism so convincing that three of my friends gave up their religious belief due to my persuasive reasoning powers, and my father stopped going to church.
Upon concluding through a torturous and decades-long and remorseless process of logic that all my fellow atheists were horribly, comically wrong about every basic point of philosophy, ethics, and logic, and my hated enemies the Christians were right, I wondered how this could be. The data did not match the model.
So, as a good scientist who put things to empirical proof, he prayed to this “God” he did not believe in, politely asking him to reveal himself. He says, “Three days later, with no warning, I had a heart attack, and was lying on the floor, screaming and dying. Then I was saved from certain death by faith-healing…” The he describes what happened. For the purposes of this blog, I refer you to his original story for all the details.
What is also interesting is how his atheist friends reacted:
I then discovered that the Christian world view makes sense of much that the atheistic or agnostic worldview cannot make sense of. I found that even on its own philosophical terms, Christianity is a more robust explanation of the cosmos and man’s place in it, answering many questions successfully that atheists both claim cannot be answered, and then, without admitting it, act in their lives as if the question were answered, such as how to account for the rational faculties of man, the universality of moral principles, the order of the cosmos, how best to live, etc.
Turning to my atheist friends, I then discovered none of them, not one, could give me even so reasonable an argument as I was expert in giving in favor of atheism.
They reasoned as follows: “God cannot possibly exist. Therefore any evidence that you encountered that God exists must be hallucination, mis-perception, faulty memory, self-deception, coincidence, or anything else no matter how farfetched and absurd. Since any evidence that you encountered that God exists must be hallucination, mis-perception, faulty memory, self-deception, coincidence, or anything else no matter how farfetched and absurd, therefore none of your evidence proves God exists.”
No matter what they saw, no matter what they heard, no matter how the world was against them, they would go to the lions rather than look at the evidence, lest their faith in their faithlessness be shaken.
When I pointed out that this was circular reasoning, they called me bad names.
He continues on with several examples of the unwillingness of his atheist friends to acknowledge that he was still a sane, rational person. Here’s the original story on the author’s blog Sci Fi Wright.