07/06/2026
In the thirteenth century, a young Belgian nun named Juliana had a recurring vision that she could not understand.
Again and again, she saw a bright full moon shining in the sky.
But there was something unusual about it.
A dark stripe ran across the moon, as though a piece was missing.
For years, Juliana prayed and reflected on the meaning of this mysterious vision.
Eventually, she came to believe that the moon represented the Church's liturgical year.
The dark stripe symbolized something missing from the Church's calendar: a special feast dedicated entirely to honoring Jesus in the Holy Eucharist.
At the time, Catholics already celebrated the Eucharist during Holy Thursday.
But Holy Thursday occurs during the solemn days leading to Christ's Passion and death.
Juliana believed the Church needed a separate feast focused solely on the joy and wonder of Christ's Real Presence in the Blessed Sacrament.
Her idea slowly spread.
Years later, it reached Pope Urban IV.
Then something extraordinary happened.
After a Eucharistic miracle reported in Bolsena, Italy, and after hearing growing devotion to the Eucharist, Pope Urban IV established the Feast of Corpus Christi for the entire Church in 1264.
Soon afterward, Catholics began carrying the Blessed Sacrament through the streets in public processions.
What started with a nun's vision became one of the most beloved traditions in Catholic history.
But why was this procession so important?
First, The Feast Was Created to Honor the Real Presence of Jesus.
The heart of Corpus Christi is the Catholic belief that Jesus is truly present in the Eucharist.
The Bible records Jesus saying:
"This is my body, which will be given for you" (Luke 22:19).
The feast was established to help Catholics focus specifically on this profound mystery.
Second, The Procession Became a Public Act of Faith.
The first Corpus Christi processions brought the Eucharist out of the church and into the streets.
This was a public declaration that Christ was present among His people.
It allowed the faithful to witness their belief openly before the world.
Third, St. Juliana's Vision Helped Shape a Universal Feast.
Although many people contributed to the spread of Corpus Christi, the visions and perseverance of Saint Juliana of Liège played a crucial role.
Her desire was simple: that the Church would give greater honor to Jesus in the Eucharist.
Fourth, Corpus Christi Reminds Catholics That Jesus Walks With His People.
When Catholics process through the streets with the Blessed Sacrament, they recall how Jesus walked among His people during His earthly ministry.
The procession symbolizes Christ continuing to bless, guide, and accompany His Church.
Fifth, The Tradition Continues to Strengthen Faith Today.
More than seven centuries later, Corpus Christi processions are still held around the world.
They remind Catholics that the Eucharist is not merely a symbol but the living presence of Christ, who remains with His people.
The Bible says:
"And behold, I am with you always, until the end of the age" (Matthew 28:20).
Finally, the first Corpus Christi procession was not simply the beginning of a religious custom. It was the fruit of a vision, a deep love for the Eucharist, and a desire to honor Christ publicly. What began with a humble nun's prayer eventually became a celebration embraced by the entire Catholic Church.
In simple words, the Corpus Christi procession began after St. Juliana of Liège promoted the idea of a special feast honoring Jesus in the Eucharist. Pope Urban IV later established the feast for the whole Church, and Catholics began carrying the Blessed Sacrament through the streets as a public witness to their belief in the Real Presence of Christ.
Now you know.
If you had lived in the 1200s and witnessed the very first Corpus Christi procession, what do you think would have impressed you most about it?
SOURCES
Sacred Scripture (Catholic Translation):
Luke 22:19, Matthew 28:20, John 6:51-58
Saint Juliana of Liège
Pope Urban IV
Bolsena
Corpus Christi
Catechism of the Catholic Church §§1322-1419
Catholic Church
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