Each person is a great mystery, to himself and to others. We see the ever-changing play of light and shadow upon the superficial aspects of ourselves, but of the endless depths that lie beneath we are for the most part ignorant or unconscious. At any time, however, currents flowing from these depths may sweep us unexpectedly into thoughts, actions, or even lifestyles we would now find inconceivable. We may then rise to heights of achievement or fall far below what we would have believed possible in others. Yet how easy it is to pass judgment based on what people manifest of themselves outwardly at any given time, as if this could approach the totality of who they really are.