" One cannot laugh when in an anxiety panic, for then one is swallowed up, one has lost the distinction between himself as subject and the objective world around him. So long as one can laugh, furthermore, he is not completely under the domination of anxiety or fear—hence the accepted belief in folklore that to be able to laugh in times of danger is a sign of courage. In cases of borderline psychotics, so long as the person has genuine humor—so long, that is, as he can laugh, or look at himself with the thought, as one person put it, “What a crazy person I’ve been!”—he is preserving his identity as a self. When any of us, neurotic or not, get insights into our psychological problems, our spontaneous reaction is normally a little laugh—the “aha” of insight, as it is called. The humor occurs because of a new appreciation of one’s self as a subject acting in an objective world. "

― Rollo May , Man's Search for Himself