Corpus Christi Sunday, Year A

Today is the Feast of Corpus Christi. Humans are creatures of longing. We live not only by what sustains our bodies, but also by what gives direction and meaning to our lives. Deep within ourselves, we are never completely closed off to ourselves, but open to something beyond ourselves, to the infinite.

Saint Augustine said, "God, you created us for you; therefore, our hearts are not at peace until we find rest with you."

Saint Augustine's words touch not only on emotional anxiety, but on the deepest structure of human existence. Limited things, such as "food," "drink," "shelter," "clothing," "success," "achievements," "the approval of others," and "relationships," cannot provide the ultimate satisfaction that the human heart seeks. Limited or fleeting things are all good, but they are not decisive. Therefore, humans continue to question what the ultimate foundation truly sustains their existence is.

It is in this longing that we celebrate the Feast of Corpus Christi. We do not reminisce about the past, but convey the reality we live. God is not far away, but lives within us through the Eucharist, and is with us.

The first reading, Deuteronomy, takes us to the desert, describing the fragility and vulnerability of human beings. There, Israel learns that they cannot survive by their own strength alone. God gives manna as a sign that life is a daily grace. However, manna is limited and cannot satisfy humanity's deepest desires.

Today's Gospel reads, "I am the living bread that came down from heaven. Whoever eats this bread will live forever. This bread I give is my flesh, which gives life to the world."

Here, we face a mystery that transcends symbolism. Jesus Christ not only appears as the giver of "bread," but Jesus Christ Himself is the "bread of life" itself.

Jesus Christ is not merely a messenger of "God's gifts," but "God's gifts" itself. Jesus Christ Himself is both the giver and the receiver. He does not give something outside of Himself, but gives Himself.

With this understanding, we enter the core of the mystery of the Eucharist. In the Church tradition, particularly in the thought of St. Thomas Aquinas, this is expressed by the term "consecration." The intention here is not a change that can be perceived by the senses or explained physically, but a change at the deepest level of reality—substance. Outwardly, it remains bread and wine, but in the deepest reality, Jesus Christ Himself is real, complete, and alive.

Philosophically speaking, this means that reality is not composed solely of what is visible, but has a deepest dimension that cannot be perceived by the senses. And in that deepest dimension, Jesus Christ Himself is present.

This appearance is not an appearance of an object between things, but an appearance of the person of Jesus Christ Himself, complete in divinity and humanity. Jesus Christ appears not as a symbol, but as a reality given to faith.

Therefore, the Eucharist is not merely a sign, but rather an encounter. In it, we not only receive something, but we receive a person. And in this encounter, we are transformed and drawn into a life-giving communion with Jesus Christ.
"For there is one loaf, and therefore we many are one body, for we all share it and eat," St. Paul emphasizes in the second reading.
In this mystery, the Eucharist is never merely a personal matter. Anyone who receives the body of Jesus Christ is united with Jesus Christ, and at the same time, we are united with one another in Jesus Christ.
From this, we realize that the Eucharist speaks not only of moral bonds and social solidarity, but of a deeper communion: the Church as the mystical body of Jesus Christ. Those who receive the Eucharist not only become intimate with one another, but are spiritually united with the one life of Jesus Christ himself.
Therefore, the Eucharist forms a new perspective on humanity. It rejects the logic of evaluating human beings by their usefulness, achievements, or abilities. In the Eucharist, human beings are first and foremost loved, not producers.
In a world where a person's value is often measured by their achievements, status, accomplishments, and usefulness, the Eucharist focuses on a fundamental truth:
We are born into this world to be loved.
Gifts precede achievements,
and grace precedes effort.
The life of faith is rooted in God's love.
Without God's love, the life of faith is meaningless.
Therefore, everyone who receives Holy Communion is united not only with Jesus Christ but also with others. Fellowship with Jesus Christ is also fellowship with our brothers and sisters.
Thus, the Eucharist forms the Church not as an individual gathering of believers, but as the living body of Jesus Christ. In the same bread, God Himself breaks down the divisions between people. This applies even between the rich and the poor, the strong and the weak, the near and the far, and even between those who are fundamentally incompatible.
Therefore, the Eucharist has tangible existential consequences. It opposes all forms of selfishness that isolate oneself, indifference to the suffering of others, and all forms of division that destroy the unity of the body of Jesus Christ. It is impossible to accept Jesus Christ in the Eucharist while remaining closed off to others.
Conversely, the Eucharist invites us to enter into the way of life of Jesus Christ himself: to cherish one another, to care for one another, to bear one another's burdens, and to open our hearts to the weak, the marginalized, and the forgotten.
The love of Jesus Christ received at the altar should take concrete form in our daily lives. Therefore, the Eucharist does not end at the altar, but continues in our concrete lives—in encouraging words, in righteous actions, and in the courage to be there for those in need. As we celebrate the Feast of Corpus Christi, let us embark on this week's journey with an awareness that our daily lives are sustained by the presence of Jesus Christ.