For a mile or so they would be aware of their running. Then, in time, they would become lost in the monotonous stride of their pace, running, but each somewhere else in his mind, seeing cool mountain pastures or palm trees or thinking of nothing at all, running and hearing themselves sucking the heated air in and letting it out, but not feeling the agony of running. They had learned to do this in the past months, to detach themselves and be inside or outside the running man but not part of him for long minutes at a time.
— Elmore Leonard, Forty Lashes Less One.