The communion service is meant to be for each Christian a prelude to a renewal of the life of grace. It is an opportunity to have the life of Jesus rise up once again in our inmost being and recreate within us the new life. We have been planted with Christ in His death so that we might rise to newness of life. The Lord's Supper brings to the Christian four things that are the result of Christ's death. Life - Food is the natural way to sustain the life of the body.
Food is the natural way to sustain the life of the soul.
I am the bread of life. This is the bread which comes down out of heaven, so that one may eat of it and not die. Jesus is the grain of wheat that from which the bread of life is made. Eating of Jesus' flesh, the bread of God, we are nourished spiritually. We grow in grace.