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Instructions and Church sources

This is a silent, manually cued guide for the ordinary Roman Rite in English. It has no fixed duration or automatic advance. Use Right Arrow or Space to advance, Left Arrow to go back. Use the dropdown to skip optional parts. Edit mass-monitor-guide.html to change the scenes list and biblicalPairs captions.

Default display: one short explanation and a Scripture connection. “Show actions” adds the priest’s or minister’s action. Scripture labels identify direct textual connections or broader biblical themes. A biblical theme does not mean Scripture prescribes that particular rubric.

The Gloria normally occurs on Sundays outside Advent and Lent, and on solemnities and feasts. The Creed normally occurs on Sundays and solemnities. The sprinkling rite may replace the usual Penitential Act on Sundays. In Lent, the Gospel acclamation replaces the Alleluia. Special celebrations may change the sequence.

Keep explanatory captions brief. Cue screens from the celebration, not a stopwatch. Optional posture cues follow the U.S. General Instruction, 43 and 160. Follow your diocese’s directions. Health, space, and other reasonable circumstances can prevent kneeling. Those who do not kneel make a profound bow when the priest genuflects after the consecration.

In the U.S., standing is the norm for receiving Communion, while individuals may receive kneeling. Bow the head before receiving. The communicant may receive the host on the tongue or in the hand. These notes concern how Communion is received, not who is prepared to receive it.

For use during parish worship, have the pastor or parish liturgy team review the wording, placement, and timing. This guide supplements participation and does not supply the complete liturgical texts or live accessibility captions. It is a display prototype, not a video recording or an official Church publication.

In persona Christi

In persona Christi Capitis means “in the person of Christ the Head.” By Holy Orders, the priest serves as Christ’s sacramental instrument. At Mass, he presides in this capacity, especially when he speaks Christ’s words at the consecration. The Eucharistic Prayer is also the prayer he offers on behalf of the Church. This role does not mean his personality disappears, that he becomes divine, or that every opinion or everyday action is Christ’s own action.

This also applies outside Mass in sacramental ministry, notably when the priest gives absolution in the sacrament of Reconciliation. The symbolic illustration explains Christ’s action through his minister; the photograph shows ordained priests at a real Mass. The teaching describes Christ’s sacramental action through his ministers. The explanation screen before the Preface is optional teaching content, not an added liturgical rite.

Sources: Catechism 1548–1550, the Dicastery for the Doctrine of the Faith, Gestis Verbisque, 2024, and John Paul II’s Holy Thursday letter to priests, 2004.

Side-by-side biblical roots and the Mass today

Each section pairs a sacred illustration on the left with a real Mass photograph on the right. The left caption explains a biblical event, theme or sacramental connection. These are AI-generated illustrations, not photographs of biblical events. Some themes are illustrated again where they illuminate more than one part of Mass. The present-day photographs remain distinct across all 33 screens.

Real Mass photographs and early Christian roots

The display uses 33 distinct, reusable photographs of actual Catholic celebrations. Visible credits link to their sources and licenses; full photograph credits and event descriptions are included. Some are representative views or related actions, rather than the exact moment named. Photographs include celebrations outside the U.S.; the guide’s optional posture cues follow U.S. norms.

Each screen adds a short historical connection. Ancient witnesses establish continuity in the Eucharist’s structure and faith; they do not establish that every modern rubric existed from the beginning. The present Roman rite developed over centuries. No photograph is presented as an image of an ancient celebration.

The main witnesses are Justin Martyr, First Apology 65–67 (about AD 155), the Didache, and fourth-century Jerusalem mystagogical catecheses, traditionally attributed to St. Cyril. See also Tertullian, On the Crown 3, and the USCCB’s history of the Roman Missal.

Communion unites us with Christ and his whole Church. Christ’s one sacrifice becomes present sacramentally; the congregation does not physically move to the historical Upper Room. See Catechism 1085, 1367 and 1370.

Keep the mass-images, mass-photos and assets folders beside mass-monitor-guide.html. The Mass photographs checkbox hides or shows pictures. The guide works offline; external source links require internet access.

Church sources