From The Divine Holy Mass.

The Priest says three Prayers (the first Prayer is below), in which we are reminded of the effect that Communion is to produce in our Souls:

Peace;

Healing;

Grace.

At this point, we place our reliance on the merits and Faith of The Church.

The Spouse of Christ has herself prepared us for this Solemn Act, in which we are about to take part; thus our union with Christ will be fruitful, since it will tighten the cords of Charity uniting the Faithful in the World, making us all one in Christ and vowed vitally through Him to The Most Holy Trinity.

For this reason, The Holy Eucharist was instituted.

The first of these three Prayers is not Said at Masses for The Dead.

Domine Jesu Christe, qui dixísti Apóstolis tuis: Pacem relínquo vobis, pacem meam do vobis;

Ne respícias peccáta mea, sed fidem Ecclésiæ tuæ;

Eámque secúndum voluntátem tuam pacificáre et coadunáre dignéris;

Qui vivis et regnas Deus per ómnia saécula sæculórum.

Amen.

O, Lord Jesus Christ, Who saidst to Thy Apostles, Peace I leave with you, My Peace I give unto you;

Look not upon my sins, but upon the Faith of Thy Church;

And Vouchsafe to grant her Peace and Unity according to Thy will;

O, God Who livest and reignest World without end.

Amen.