John Piper: ” The Lord’s Supper expresses the value of Christ by nourishing our
life in Christ. If we come to Christ over and over and say, “By this, O
Christ, I feed on you.  By this, O Jesus Christ, I nourish my life in you.  By
this I share in all the grace you bought for me with your own blood and body”
(1 Corinthians 10:16) – if we come to Christ over and over with this longing
and this conviction in our heart: that here he nourishes us by faith, then the
Lord’s Supper will be a deep and wonderful act of worship. Nothing shows the
worth and preciousness of Christ so much as when we come to him to feed our
hungry souls.”

–entire sermon HERE