Resting certainly involves physical sleep, something I did quite a lot of, since I've been home from work, yesterday (after doing taxes, and running into difficulties in doing that, the day before!). But resting for me also involves being quiet and saying little at times, and refusing to express myself nonverbally, as well.
What I'm resting from is my own activities, be they physical, mental, even spiritual. Although this exercise of resting is rather a spiritual exercise in itself. But in so doing, I find that God is finally given room in my life to begin to get through to me, as he wants to.
I easily can take that back along the way, and fall into my own muddledness. But I can easily move back into that rest, in which I come "to myself" again in God. God again being able to break through to me. So that my words and actions can be helpful, and more "of God".
What would you like to add to this?