One can become overwhelmed on vacation-I have become so-by thinking thoughts that are too large. There is a condition identified in psychology textbooks as the Stendhal syndrome, also called, or related to, the Jerusalem syndrome, that describes a tourist's overwhelmed response to great works of art or to a sudden apprehension of scale, antiquity, multitude, death-the accompanying fear is of one's insignificance, but also of squandered opportunity.