henry copeland:

Different runs bring different mindsets

Long runs tend to brew essay or story ideas, but the fast work of training — sprints, hills, lifting weights — simultaneously sharpens and blurs those ideas into actions. Training sharpens ideas by cutting away the chaff that tends to accumulate during that long time on the trail, where the mind can wander; training blurs those ideas to the surreal places where art is made. Since my body craved sleep, I could slip from the rational mind that stifles fiction.
- www.themillions.com