We just finished a series on Busyness and the rest of the sermons should be on the website soon. But I quoted from Mark Buchanan's book "The Rest Of God" several times in my sermons. I would recommend it for content and beauty of writing. In the following paragraphs he reflects on how busyness keeps us from knowing God.
"Busyness also robs us of knowing God the way we might. It’s true that some facets of God we glimpse only through motion. Only those who stretch out their hands and offer water to the thirsty discover, disguised among them, Jesus. Only those who trudge up the mountain, willing to grow blistered and weary on the narrow trail, witness his transfiguration. Only those who invite the stranger in to share bread realize they’ve entertained an angel unawares, sometimes even Christ himself. Often, God meets us along the way, as we go: he waits to see who will step out before he sidles up, woos us over, intercepts, redirects.
"But other facets of God we discover only through stillness. “Be still,” the psalm instructs, “and know that I am God” (Ps. 46:10). Only Mary, Martha’s sister, sitting wide-eyed and open-eared, truly hosts Christ in her home. Only those who wait on the Lord renew their strength. Only those who are quiet and watchful find God’s mercy that is new every morning. Only those who join him in his love for the contrite and broken in spirit recognize him hidden among “the least of these” (Matt. 25:40)."
Buchanan, Mark (2007-03-11). The Rest of God: Restoring Your Soul by Restoring Sabbath (pp. 48-49). Thomas Nelson. Kindle Edition.