“Lightness of being,” then, is the ability, if not to find the good in bad things, then at least to remain afloat among them, perhaps to swim or to sail through them, possibly even to take precautions that can keep you dry. It’s not to locate logic in misfortunes, or to show that they’re for the best because they reflect God’s will. That’s for Augustine the hedgehog, the ponderous Pangloss of his day.