For me, running is both exercise and a metaphor. Running day after day, piling up the races, bit by bit I raise the bar, and by clearing each level I elevate myself. At least that’s why I’ve put in the effort day after day: to raise my own level. I’m no great runner, by any means. I’m at an ordinary – or perhaps more like mediocre – level. But that’s not the point. The point is whether or not I improved over yesterday. In long-distance running the only opponent you have to beat is yourself, the way you used to be.
It has long been a tradition among novel writers that a book must end by everybody getting just what they wanted, or if the conventional happy ending was impossible, then it must be a tragedy in which one or both should die. In real life very few of us get what we want, our tragedies don't kill us, but we go on living them year after year, carrying them with us like a scar on an old wound.