Christ is fully satisfying to the soul, Ps. 73:25; Hab. 3:17, 18. We all know this by report; but the Christian experimentally knows it by a spiritual sensation in the innermost parts of his soul. Sometimes, when all his enjoyments have been standing entire about him, he has looked with a holy contempt on them all, saying in his heart, These are not my portion. His heart has been loosed from them, and he has been made willing to part with them all for Christ, in whom his soul rejoiced, and in whom alone he was satisfied. Sometimes, again, all outward things have been going wrong with him, yet he could comfort, encourage, and satisfy himself in Christ, as David did in a great strait, 1 Sam. 30:6. He has gone away to his God and his Christ, and with Hannah returned with “a countenance no more sad,” 1 Sam. 1:18.
Source: http://www.puritanboard.com/f25/christ-fully-satisfying-soul-83481/, Comment #1 (Thank You, Reverend Winzer!)