Knowing Christ well is so spiritually thirst quenching because no person, possession, or experience can produce the spiritual pleasure we can find in Him. Communion with Christ is incomparably satisfying because there is no disappointment in what you find in Him. Moreover, the spiritual gratification you find in Him initially is never ending. On top of these, the Lord in whom this satisfaction is found is an infinite universe of satisfaction in which one may immerse himself to explorer and enjoy without limitation. So there is no lack of satisfaction in knowing Christ, but neither has God designed us so that one experience with Christ satiates all future desire for Him.
— Donald Whitney, 10 Questions to Diagnose Your Spiritual Health, 22