... stress cannot be dealt with by psychological tricks, because for the most part it is a philosophical rather than a physiological problem, a matter of wrong worldview. Perhaps the most common variety of stress can best be described as "rustout" rather than burnout. It is a product, not of an excess of fire but of a deficiency of passion. We, human beings, can survive so long as we "make a living," but we do not thrive without a sense of significance that we gain only by creating something we feel is of lasting value -- a child, a better mousetrap, a computer, a space shuttle, a book, a farm. When we spend the majority of our time doing work that gives us a paycheck but no sense of meaning we inevitably get bored and depressed. When the requirements of our work do not match our creative potential we rust out. The second kind of burnout is really a type of combat fatigue that is the inevitable result of living for an extended period within an environment that is experienced as a battle zone. If the competition is always pressing you to produce more and faster, if life is a battle, if winning is the only thing, sooner or later you are going to come down with battle fatigue. Like combat veterans returning from Vietnam, businessmen who live for years within an atmosphere of low-intensity warfare begin to exhibit the personality traits of the warrior. They become disillusioned and numb to ethical issues: they think only of survival and grow insensitive to pain.
Fire in the Belly, Sam Keen, p 61.