Prayer is the soul's sincere desire
Uttered or unexpressed;
The motion of a hidden fire,
That trembles in the breast.
~ James Montgomery
To rest is to give up on the already exhausted will as the prime motivator of endeavor, with its endless outward need to reward itself with established goals. To rest is to give up on worrying and fretting and the sense that there is something wrong with the world unless we are there to put it right.