On Dec. 14, 1934, a failed stockbroker named Bill Wilson was struggling with alcoholism at a New York City detox center. It was his fourth stay at the center and nothing had worked. This time, he tried a remedy called the belladonna cure — infusions of a hallucinogenic drug made from a poisonous plant — and he consulted a friend named Ebby Thacher, who told him to give up drinking and give his life over to the service of God.

Wilson was not a believer, but, later that night, at the end of his rope, he called out in his hospital room: “If there is a God, let Him show Himself! I am ready to do anything. Anything!”

As Wilson described it, a white light suffused his room and the presence of God appeared. “It seemed to me, in the mind’s eye, that I was on a mountain and that a wind not of air but of spirit was blowing,” he testified later. “And then it burst upon me that I was a free man.”

Wilson never touched alcohol again….