What role does the Lord’s Prayer have in the Roman Catholic Communion rite?

In the Roman Catholic Communion rite, the Lord’s Prayer serves as a central act of preparation before the reception of the Eucharist. The priest invites the congregation to recite or sing the prayer, which is recognized as the most universal of Christian prayers, taught by Christ himself.1

The liturgical structure of the prayer in the Roman Catholic Mass involves a specific sequence:

• Initial Recitation: The congregation recites or sings the prayer up to the petition "but deliver us from evil".1
• Embolism: The priest then recites an embolism—an additional prayer for deliverance from evil and for peace—which expands upon the final petition.21
• Doxology: Following the embolism, the congregation concludes the prayer by reciting the doxology: "For the kingdom, the power, and the glory are yours, now and forever".21

This inclusion of the doxology was adopted following the Second Vatican Council as a gesture of ecumenism. Following this, the rite continues with the exchange of a sign of peace among the congregation.21