Sacramentum Caritatis §51

The dismissal: "Ite, missa est"

51. Finally, I would like to comment briefly on the observations of the Synod Fathers regarding the dismissal at the end of the eucharistic celebration. After the blessing, the deacon or the priest dismisses the people with the words: Ite, missa est. These words help us to grasp the relationship between the Mass just celebrated and the mission of Christians in the world. In antiquity, missa simply meant "dismissal." However in Christian usage it gradually took on a deeper meaning. The word "dismissal" has come to imply a "mission." These few words succinctly express the missionary nature of the Church. The People of God might be helped to understand more clearly this essential dimension of the Church's life, taking the dismissal as a starting- point. In this context, it might also be helpful to provide new texts, duly approved, for the prayer over the people and the final blessing, in order to make this connection clear (154).

(154) Cf. Propositio 24.