282. How is Christ present in the Eucharist?

282. How is Christ present in the Eucharist? 

(Comp 282) Jesus Christ is present in the Eucharist in a unique and incomparable way. He is present in a true, real and substantial way, with his Body and his Blood, with his Soul and his Divinity. In the Eucharist, therefore, there is present in a sacramental way, that is, under the Eucharistic species of bread and wine, Christ whole and entire, God and Man.

“In brief” 

(CCC 1413) By the consecration the transubstantiation of the bread and wine into the Body and Blood of Christ is brought about. Under the consecrated species of bread and wine Christ himself, living and glorious, is present in a true, real, and substantial manner: his Body and his Blood, with his soul and his divinity (cf. Council of Trent: DS 1640; 1651). 

To deepen and explain 

(CCC 1373) "Christ Jesus, who died, yes, who was raised from the dead, who is at the right hand of God, who indeed intercedes for us," is present in many ways to his Church (Rom 8:34; cf. LG 48): in his word, in his Church's prayer, "where two or three are gathered in my name" (Mt 18:20), in the poor, the sick, and the imprisoned  (Cf. Mt 25:31-46), in the sacraments of which he is the author, in the sacrifice of the Mass, and in the person of the minister. But "he is present… most especially in the Eucharistic species" (SC 7). (CCC 1374) The mode of Christ's presence under the Eucharistic species is unique. It raises the Eucharist above all the sacraments as "the perfection of the spiritual life and the end to which all the sacraments tend" (St. Thomas Aquinas, STh III, 73, 3c). In the most blessed sacrament of the Eucharist "the body and blood, together with the soul and divinity, of our Lord Jesus Christ and, therefore, the whole Christ is truly, really, and substantially contained" (Council of Trent (1551): DS 1651). "This presence is called 'real' - by which is not intended to exclude the other types of presence as if they could not be 'real' too, but because it is presence in the fullest sense: that is to say, it is a substantial presence by which Christ, God and man, makes himself wholly and entirely present" (Paul VI, MF 39). 

On reflection 

(CCC 1375) It is by the conversion of the bread and wine into Christ's body and blood that Christ becomes present in this sacrament. The Church Fathers strongly affirmed the faith of the Church in the efficacy of the Word of Christ and of the action of the Holy Spirit to bring about this conversion. Thus St. John Chrysostom declares: It is not man that causes the things offered to become the Body and Blood of Christ, but he who was crucified for us, Christ himself. The priest, in the role of Christ, pronounces these words, but their power and grace are God's. This is my body, he says. This word transforms the things offered (St. John Chrysostom, prod. Jud. 1:6: PG 49, 380). And St. Ambrose says about this conversion: Be convinced that this is not what nature has formed, but what the blessing has consecrated. The power of the blessing prevails over that of nature, because by the blessing nature itself is changed.... Could not Christ's word, which can make from nothing what did not exist, change existing things into what they were not before? It is no less a feat to give things their original nature than to change their nature (St. Ambrose, De myst. 9, 50; 52: PL 16, 405-407).  

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