“I am the bread of life. Your fathers ate the manna in the wilderness, and they died. This is the bread which comes down from heaven, that a man may eat of it and not die. I am the living bread which came down from heaven; if any one eats of this bread, he will live for ever; and the bread which I shall give for the life of the world is my flesh. The Jews then disputed among themselves, saying, ‘How can this man give us his flesh to eat?’ So Jesus said to them, “Truly, truly, I say to you, unless you eat the flesh of the Son of man and drink his blood, you have no life in you; he who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day. For my flesh is food indeed, and my blood is drink indeed. He who eats my flesh and drinks my blood abides in me, and I in him” (John 6:48-56).
Furthermore, the early Church Fathers either imply or directly state that the bread and wine offered in the celebration of the Lord’s Supper is really the body and blood of Jesus Christ. In other words, the doctrine of the Real Presence that Catholics believe today was believed by the earliest Christians 2,000 years ago!
This miracle of God’s physical presence to us at every Mass is the truest testament to Christ’s love for us and His desire for each of us to have a personal relationship with Him. (from Catholics Come Home)
Click here for Bishop Rober Barron's video on the Real Presence in the Eucharist!
"...a sacrament of love, a sign of unity, a bond of charity, a Paschal banquet 'in which Christ is consumed, the mind is filled with grace, and a pledge of future glory is given to us'" (CCC 1323).