The problem faced by those of us who live in societies of abundance is that we lose a sense of limit. We are carefully shielded from death and can pass months, even years, without contemplating it. We imagine endless time at our disposal and slowly drift further from reality; we imagine endless energy to draw on, thinking we can get what we want simply by trying harder. We start to see everything as limitless—the goodwill of friends, the possibility of wealth and fame.