I joke that there should be an implanted audio recorder in my body so that I can take notes while I run; it’s not really a joke that great thoughts often spring out of the kind of unfettered rumination repetitive exercise allows. In childhood they called it daydreaming. In adulthood it is trampled out of existence by cell phones, family, television, radio, and an iPod in every ear when working out. (In certain cases, using music to enhance a workout experience is desired and OK – here I’m just talking about the default headphones mode that many runners and joggers revert to for every single outing.)
For many, the only chance at quiet consciousness is when unconcious. We dream, we wake up, we might recall that something in the dream was good and it should be written down, but then we forget.
Go take a walk with zero electronics or friends to talk with.
Don’t listen to music.
Allow your mind some unfettered time.
See what develops.