If you have ever noticed the robes of Catholic priests during Mass, you may have seen a symbol that looks like the letters PX stitched or printed on the garment.
To many people, it just appears like a simple design, but in reality, this symbol carries deep spiritual meaning.
It is not just decoration—it is one of the oldest and most sacred symbols of the Christian faith.
The “PX” symbol is actually known as the Chi-Rho. It comes from the first two letters of the Greek word for Christ, “ΧΡΙΣΤΟΣ” (Christos).
The letter Chi (Χ) looks like an English “X,” and the letter Rho (Ρ) looks like an English “P.”
When placed together, they form the monogram “XP” or “PX,” which represents Jesus Christ.
This symbol goes back to the early years of Christianity, long before crosses were commonly used.
It became especially popular after Emperor Constantine, the first Roman Emperor to convert to Christianity, adopted it.
According to history, Constantine had a vision of this sign before a great battle, with the words, “In this sign, you shall conquer.”
After his victory, the Chi-Rho became a recognized Christian emblem.
On a priest’s clothing, the PX symbol is a reminder that everything done during Mass is centered on Christ.
It represents victory over sin, faith in salvation, and the presence of Jesus in the liturgy.
It also connects modern-day worship to the early Church, reminding Catholics of their long spiritual heritage.
Final Thoughts
The “PX” is not just a fancy mark—it is a sacred sign that points to Christ Himself.
Whenever you see it on a priest’s robe, remember its powerful meaning: Christ is at the heart of the faith, the victory, and the salvation of believers.