Encyclical Letter on the Holy Eucharist - Part 31

31. If the Eucharist is the centre and summit of the Church's life, it is likewise the centre and summit of priestly ministry. For this reason, with a heart filled with gratitude to our Lord Jesus Christ, I repeat that the Eucharist “is the principal and central raison d'être of the sacrament of priesthood, which effectively came into being at the moment of the institution of the Eucharist”.⁶³

Priests are engaged in a wide variety of pastoral activities. If we also consider the social and cultural conditions of the modern world it is easy to understand how priests face the very real risk of losing their focus amid such a great number of different tasks. The Second Vatican Council saw in pastoral charity the bond which gives unity to the priest's life and work. This, the Council adds, “flows mainly from the Eucharistic Sacrifice, which is therefore the centre and root of the whole priestly life”.⁶⁴ We can understand, then, how important it is for the spiritual life of the priest, as well as for the good of the Church and the world, that priests follow the Council's recommendation to celebrate the Eucharist daily: “for even if the faithful are unable to be present, it is an act of Christ and the Church”.⁶⁵ In this way priests will be able to counteract the daily tensions which lead to a lack of focus and they will find in the Eucharistic Sacrifice – the true centre of their lives and ministry – the spiritual strength needed to deal with their different pastoral responsibilities. Their daily activity will thus become truly Eucharistic.

The centrality of the Eucharist in the life and ministry of priests is the basis of its centrality in the pastoral promotion of priestly vocations. It is in the Eucharist that prayer for vocations is most closely united to the prayer of Christ the Eternal High Priest. At the same time the diligence of priests in carrying out their Eucharistic ministry, together with the conscious, active and fruitful participation of the faithful in the Eucharist, provides young men with a powerful example and incentive for responding generously to God's call. Often it is the example of a priest's fervent pastoral charity which the Lord uses to sow and to bring to fruition in a young man's heart the seed of a priestly calling.