Darrell Calkins said this quote
“ I look at the idea of rest as rotating one’s qualitative focus, not just doing less or changing activity. The role of rest is recovery. If you keep pushing the same quality button (fast or slow, concentrated or dispersed, hard-working or lazy…) for the same component all the time, of course it’s going to become depleted, just like if you keep working a single muscle in the same fashion or don’t use it at all. ”