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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

“Ad Orientem” Explained

Daniel Tucker · February 13, 2021

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HIS YEAR, the priest at my parish will be offering the Holy Sacrifice of the Mass ad orientem on Fridays during Lent. In parishes that are not used to having Mass offered ad orientem, introducing it at daily Mass on the Fridays of Lent is an excellent way to begin the practice. I wrote the following “explainer” to help my parishioners understand what’s going on and why.

What does “ad orientem” mean?

“Ad orientem” is Latin for “toward the East.” It refers to the direction that the priest faces during particular moments in the Holy Sacrifice of the Mass. Historically, Catholic churches and cemeteries have always been built along an East-West axis whenever possible. This is because the Holy Sacrifice of the Mass is not merely a closed-circle, communal event taking place between the priest and people, but a heavenly mystery encompassing the whole cosmos: “In the earthly liturgy we take part in a foretaste of that heavenly liturgy which is celebrated in the holy city of Jerusalem toward which we journey as pilgrims, where Christ is sitting at the right hand of God…” (Sacrosanctum Concilium, paragraph 8). 

It seems like the priest is facing the wrong way. What’s going on?

During those portions of the Mass that are addressed to the people, the priest faces the people. However, because the Eucharistic prayer is addressed to God the Father, the normal posture of the priest has always been to face with the people toward the Lord while the priest, acting “in persona Christi capitis” (“in the Person of Christ the Head”), re-presents Christ’s saving sacrifice to the Father in an unbloody manner through the power of the Holy Spirit.

Didn’t Vatican II get rid of this?

Actually, no. Nowhere in the documents of Vatican II (nor in any other magisterial documents before or since) has the Church ever directed the priest to face “versus populum” (Latin, “toward the people”) for the entire duration of the sacred liturgy. In fact, the current edition of the General Instruction of the Roman Missal (the priest’s “instruction book” for Mass) presumes the “ad orientem” posture because it directs the priest to turn and face the people at certain points, implying that he had not been facing them beforehand.

What does this mean for me?

While the priest’s “ad orientem” posture may seem unusual at first, with repeated exposure many people find that the “ad orientem” celebration allows them to enter more deeply into the prayer of the Mass and to focus more intently on the mystery of Christ’s Real Presence – Body, Blood, Soul, and Divinity – in the Most Holy Eucharist.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Tagged With: Ad Orientem Last Updated: February 13, 2022

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About Daniel Tucker

Daniel Tucker is choirmaster at the Cathedral of St. Matthew in South Bend, IN. He holds degrees from Western Michigan University and Yale University. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    A Nice Hymn In Spanish
    In my humble opinion, this is a really beautiful hymn in Spanish. If I practice diligently, I’ll be able to pronounce all the words properly. If you’re someone who’s interested in obtaining a melody only version (suitable for your congregational ORDER OF WORSHIP) you can steal that from this.
    —Jeff Ostrowski
    “Music List” • 21st in Ordinary Time (Year C)
    Our choir returns on Sunday, 24 August 2025. Some have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for it, which is the 21st Sunday in Ordinary Time (Year C). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are conveniently stored at the spectacular feasts website. When it comes to the feast of the Assumption (15 August 2025), I have uploaded the music list for that Mass—but not the “bi-lingual” Mass in the evening (Spanish, Latin, and English) which has completely different music.
    —Jeff Ostrowski
    “Entrance Chant” • 21st Sunday Ordin. Time
    You can download the ENTRANCE ANTIPHON in English for the 21st Sunday in Ordinary Time (Year C) which is coming up on 24 August 2025. Corresponding to the vocalist score is this free organ accompaniment. It’s set in a melancholy mode, but if you heard my choir’s female voices singing it your soul would be uplifted beyond belief. If you’re someone who enjoys rehearsal videos, this morning I tried to sing it while simultaneously accompanying my voice on the pipe organ.
    —Jeff Ostrowski

Quick Thoughts

    Solemn “Salve Regina” (Chant)
    How many “S” words can you think of using alliteration? How about Schwann Solemn Salve Score? You can download the SOLEMN SALVE REGINA in Gregorian Chant. The notation follows the official rhythm (EDITIO VATICANA). Canon Jules Van Nuffel, choirmaster of the Cathedral of Saint Rumbold, composed this accompaniment for it (although some feel it isn’t his best work).
    —Corpus Christi Watershed
    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed

Random Quote

“Another cathedral functionary, a compañero named (coincidentally!) Francisco Guerrero, departs for the New World sometime before June 8, on which date the benefice held by him comes up for a split among three former choirboys whose voices have changed.”

— Chapter Resolution: 14 February 1562

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