What is the Real Presence in the Eucharist?
In short: The Real Presence is the Catholic teaching that Jesus Christ is truly, really, and substantially present — body, blood, soul, and divinity — in the Eucharist, not merely as a symbol or spiritual remembrance.
At every Catholic Mass, at the moment the priest speaks the words of consecration over the bread and wine, the Church teaches that something extraordinary and unrepeatable takes place: what looks and tastes like bread and wine becomes, in the fullest sense, Jesus Christ himself. This is what Catholics mean by the Real Presence. It is not a metaphor, not a pious feeling, and not simply a memorial meal. The body and blood, soul and divinity of the Lord Jesus Christ become truly present under the appearances of bread and wine.
The Catechism of the Catholic Church states plainly that in 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' (CCC 1374). The word 'substantially' is important: it means Christ is present in his very being, not merely in power or effect. The Catechism adds that 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' (CCC 1374).
The change that takes place is called transubstantiation. The entire substance of the bread becomes the substance of Christ's body, and the entire substance of the wine becomes the substance of his blood — while the outward appearances (what philosophers call the 'accidents': color, taste, texture) remain those of bread and wine. The Council of Trent, quoted by the Catechism, declared: 'By the consecration of the bread and wine there takes place a change of the whole substance of the bread into the substance of the body of Christ our Lord and of the whole substance of the wine into the substance of his blood. This change the holy Catholic Church has fittingly and properly called transubstantiation' (CCC 1376). This is not a human achievement. The Church Fathers taught that it is Christ himself who acts: as St. John Chrysostom put it, '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' (CCC 1375).
The scriptural foundation for this teaching is deep and consistent. At the Last Supper, Jesus took bread and said, 'This is my body' (Luke 22:19; Matthew 26:26), and over the cup, 'This is my blood of the covenant' (Matthew 26:28). In John 6, the Bread of Life discourse, Jesus is emphatic: 'My flesh is true food, and my blood is true drink' (John 6:55). When many disciples found this teaching too hard and left, Jesus did not call them back by saying he had only been speaking symbolically. He let them go, and turned to the Twelve: 'Do you also want to leave?' (John 6:67). Paul confirms the same in 1 Corinthians 11:27, warning that receiving 'the body and blood of the Lord' unworthily brings judgment — language that makes little sense if only a symbol were at stake.
Because Christ becomes truly present at the consecration and remains present as long as the Eucharistic species endure (CCC 1377), the Church has always offered adoration to the Eucharist — not only during Mass but also outside of it. Reserved hosts are kept in the tabernacle precisely so that the faithful can visit, pray before, and adore Jesus present there. This is not worship of bread; it is worship of Christ, who is really there. As the Catechism teaches, drawing on St. Thomas Aquinas, the Real Presence 'cannot be apprehended by the senses, but only by faith, which relies on divine authority' (CCC 1381). The appropriate response is not analysis alone but adoration, wonder, and love.
If you want to encounter the Real Presence yourself, the place to begin is Mass. Whether you are Catholic, considering the faith, or simply curious, you are welcome to attend and observe — and to bring your honest questions. You can find a Catholic Mass near you, explore the saints whose lives were shaped by this belief, or read about the sacrament of confession, which the Church teaches prepares the soul to receive Christ worthily in Holy Communion.
What the Catechism says
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. 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.
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.'
By the consecration of the bread and wine there takes place a change of the whole substance of the bread into the substance of the body of Christ our Lord and of the whole substance of the wine into the substance of his blood. This change the holy Catholic Church has fittingly and properly called transubstantiation.
The Eucharistic presence of Christ begins at the moment of the consecration and endures as long as the Eucharistic species subsist. Christ is present whole and entire in each of the species and whole and entire in each of their parts, in such a way that the breaking of the bread does not divide Christ.
It is highly fitting that Christ should have wanted to remain present to his Church in this unique way. Since Christ was about to take his departure from his own in his visible form, he wanted to give us his sacramental presence; since he was about to offer himself on the cross to save us, he wanted us to have the memorial of the love with which he loved us 'to the end,' even to the giving of his life. In his Eucharistic presence he remains mysteriously in our midst as the one who loved us and gave himself up for us.
That in this sacrament are the true Body of Christ and his true Blood is something that 'cannot be apprehended by the senses,' says St. Thomas, 'but only by faith, which relies on divine authority.' For this reason, in a commentary on Luke 22:19 ('This is my body which is given for you.'), St. Cyril says: 'Do not doubt whether this is true, but rather receive the words of the Savior in faith, for since he is the truth, he cannot lie.'
In Sacred Scripture
- Luke 22:19 — At the Last Supper Jesus took bread, gave thanks, broke it and gave it to his disciples saying, 'This is my body, which is given for you; do this in memory of me.'
- Matthew 26:26-28 — Jesus took bread, blessed and broke it, and said 'Take and eat; this is my body.' Then he took the cup and said, 'This is my blood of the covenant, which will be shed on behalf of many for the forgiveness of sins.'
- John 6:54-56 — Jesus declares: 'Whoever eats my flesh and drinks my blood has eternal life, and I will raise him on the last day. For my flesh is true food, and my blood is true drink. Whoever eats my flesh and drinks my blood remains in me and I in him.'
- 1 Corinthians 11:27-29 — Paul warns that whoever eats the bread or drinks the cup of the Lord unworthily will have to answer for the body and blood of the Lord, language that implies a real, not merely symbolic, presence.
Frequently Asked Questions
Is the Real Presence just a symbol or metaphor?
No. The Catholic Church teaches that the Real Presence is not symbolic. Christ is truly, really, and substantially present — body, blood, soul, and divinity — in the Eucharist. The outward appearances of bread and wine remain, but their inner substance has been entirely changed into Christ himself. This teaching is grounded in Jesus' own words at the Last Supper and in John 6, where he refused to soften his language even when disciples found it too difficult to accept.
What is transubstantiation?
Transubstantiation is the term the Catholic Church uses to describe the change that occurs at Mass. The entire substance of the bread becomes the substance of Christ's body, and the entire substance of the wine becomes the substance of his blood. The outward characteristics — taste, color, texture — remain those of bread and wine, but what those appearances contain has become Christ himself. The Council of Trent defined this term in the sixteenth century, and it remains the Church's precise expression of what happens at the consecration.
Do Catholics worship the Eucharist as an idol?
Catholics worship Christ, not bread. Because the Church teaches that Jesus Christ is truly and substantially present in the consecrated host, adoring the Eucharist is adoring him — the same Lord worshipped in heaven and on earth. This is why Catholics genuflect before the tabernacle and why Eucharistic adoration is a cherished devotional practice. The worship is directed entirely to the person of Jesus Christ, who is really present there.