I did want to find that place of egolessness and mindlessness that only the monotony of a 24-hour race can produce. But mostly I wanted to run because of my mother. If she, after decades of losing nearly all her muscle control, in the last hours of a grueling last week could proclaim her toughness, then I could do my best to live up to her example. Much of her life, she couldn’t walk. I would run for her.