What Is the Real Presence of Christ in the Eucharist?

The Catholic Church teaches that in the celebration of the Eucharist, bread and wine become the Body and Blood of Jesus Christ. This isn't a symbol, a metaphor, or a mere memorial. Christ is truly, really, and substantially present — body, blood, soul, and divinity — under the appearances of bread and wine.

This doctrine is called the Real Presence, and it has been the unwavering belief of Christians since the very beginning. Jesus Himself declared at the Last Supper: "This is my body… this is my blood of the covenant" (Matthew 26:26–28). The early Church took these words at face value.

The Witness of the Early Church

As early as 110 AD, St. Ignatius of Antioch — a disciple of the Apostle John — warned against those who "abstain from the Eucharist and prayer, because they do not confess that the Eucharist is the flesh of our Savior Jesus Christ." Around the year 150, St. Justin Martyr explained that the bread and wine are "not common bread and common drink" but "the flesh and blood of that Jesus who was made flesh."

This faith was later articulated with philosophical precision by St. Thomas Aquinas in the 13th century, who used the term transubstantiation — the substance of bread and wine is changed into the substance of Christ's body and blood, while the outward appearances remain.

What the Church Teaches Today

The Council of Trent (1551) solemnly defined that "in the most holy sacrament of the Eucharist there is truly, really, and substantially contained the body and blood… of our Lord Jesus Christ." This teaching was reaffirmed by every subsequent pope, including St. John Paul II and Pope Benedict XVI.

The Catechism of the Catholic Church (§1374) states: "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.'"

Why It Matters

The Real Presence means that every Mass is an encounter with the living Christ. As Blessed Carlo Acutis put it simply: "The Eucharist is my highway to heaven." This is not a relic of medieval thinking — it is the continuous, living faith of the Church from the Apostles to today.

"The Eucharist is the heart and the summit of the Church's life."