[kirse]

I agree. As a runner, I tend to see that phrase as a bit trite also, but for different reasons. If we're comparing life to running, life usually seems more like HIIT... periods of running around at full sprint with periods of recovery - jogging and walking - laced in between. Of course the occasional period of puking / hanging over the fence on the side of the track because you're just plain exhausted.

But all-in-all it's making you stronger and more capable of handling the next interval (season of life).