Several years ago, at the absolute depths of my personal crisis, a horrendous and hideous thought suddenly occurred to me: What if there is no God? What if this entire existence is … meaningless? What if all of the suffering and anguish and turmoil – not just within me, but in the world itself – is without purpose? In observing my fellow human beings I’ve noticed that each of us – even the avowed atheists among us – behave as…