Thanks, FC. I’m wondering if what makes it not cannibalism is that flesh and blood in the form of bread and wine is simply not the same as flesh and blood in the form of flesh and blood.
Right; because it is Christ’s resurrected and ascended Body that we receive, appearing, though to our sight and our taste, as bread and wine. As Eric wrote, we receive Christ’s Glorified Body and Blood. Glorified now, His Body and Blood cannot be changed or diminished by our partaking of Him in the Eucharist (in contrast to cannibalism which changes by diminishment that which is consumed). This resurrected and ascended Body is not something more than human or beyond human, but the very natural, human Body that was born of the Virgin and which worked as a Carpenter in Nazareth, albeit it now in a glorified state. This is an important clarification to make; and it is very important to realize that the Body in glory right now (i.e., the Body we receive in the Eucharist) is the same Body that suffered on the Cross, not a different one in any way. Now He feeds our bodies and souls that we may share in that same glory.
St. Ignatius of Antioch, writing in A.D. 107, makes this very clear, when he says …
“Consider how contrary to the mind of God are the heterodox in regard to the grace of God which has come to us …They abstain from the Eucharist and from the Prayer (i.e., the Mass) because they do not admit that the Eucharist is the Flesh of our Savior Jesus Christ,
the same Flesh which suffered for our sins and which the Father, in His graciousness, raised from the dead” (Ignatius to the Smyrneans, 6, A.D. 107).
This, from an article in “Homiletics and Pastoral Review” (Winter, 1997), by Msgr. Robert Sokolowski, is helpful in developing a deeper understanding of the Transubstantiation:
". . .to say that in the Eucharist the bread and wine remain what they are but acquire a new signification would contradict the logic of the Incarnation. Christ was not simply a prophet who pointed out the way to the Father; he
was the way to the Father. He did not just commnicate the truth about God, he was the Word of God. The believer comes to the Father not by the way and the truth that are signified by Christ, but through Christ himself, who is the way, the truth, and the life. Analogously, if the bread and wine were to remain bread and wine, they would point us toward the Death and Resurrection of Christ and toward the Son of God, they would signify him and what he did, but they would not
be his presence and the presence of his action among us. The Eucharist would fail to continue, sacramentally, the form of the Incarnation, and we would be deprived of the presence, the bodily presence, of the way, the truth, and the life. The Incarnation would have been withdrawn from the world. . .
“. . .it is the very material and bodily quality of the Incarnation that calls for Transubstantiation in the Eucharist. If Christ is to be present in the sacrament, he must be present in his divine and human natures, in his soul and body. And if his body is to be present, the bread cannot be. The one thing cannot be two material substances, both bread and a human body, not even the glorified human body of Christ. If it is the one it cannot be the other. The two bodily natures exclude one another, and it is the bodily presence of Christ that is specifically emphasized in the words of consecration. The body of Christ is not
with the bread but takes the place of the bread in the change we call Transubstantiation. If we deny this change, we deny the bodily presence of the glorified Christ, and hence we deny the presence of Christ. Without Transubstantiation the sacramental presence of Christ would not occur.”
Those who do not believe in the Real Presence view the bread and wine used in the Eucharist to be given additional meaning without a change of substance. Once the bread and wine is consecrated, the bread takes on the additional meaning of being Christ’s body, and the wine takes on the additional meaning of being Christ’s blood. The bread and wine don’t change (aren’t transbustantiated) but instead take on a higher meaning within the context of the sacrament. Once the bread and wine are consumed and the sacrament is complete, they lose the additional meanings they had during the ceremony and become simply bread and wine again.