The Lord's Supper was ordained for a continual remembrance of the sacrifice of Christ's death, until He comes again. The benefits it confers are spiritual, not physical. Its effects must be looked for in our inward man. It was intended to remind us, by the visible, tangible emblems of bread and wine, that the offering of Christ's body and blood for us on the cross, is the only atonement for sin, and the life of a believer's soul. It was meant to help our poor weak faith to closer fellowship with our crucified Savior, and to assist us in spiritually feeding on Christ's body and blood.
It is an ordinance for redeemed sinners, and not for unfallen angels. By receiving it we publicly declare our sense of guilt, and need of a Savior - our trust in Jesus, and our love to Him - our desire to live upon Him, and our hope to live with Him. Using it in this spirit, we shall find our repentance deepened, our faith increased, our hope brightened, our love enlarged, our besetting sins weakened and our graces strengthened. It will draw us nearer to Christ.