While Legion spirituality is most closely associated with the Rosary, the importance of the Mass must never be overlooked.
Without the Holy Sacrifice of the Mass, the prayer of the Legion would be meaningless. As the Legion handbook explains,
“By means of the Mass, the Sacrifice of the Cross is continued among men. The Mass is not a mere symbolic representation of the past, but places really and actually present in our midst that supreme action which our Lord consummated on Calvary, and which redeemed the world. The cross was not worth more than the Mass, because the two are but one and the selfsame Sacrifice, time and space being pushed aside by the hand of omnipotence. The priest and the victim are the same, the setting alone is different. The Mass contains everything that Christ offered to God, and all that he acquired for men; and the offerings of those who assist at Mass become one with the great offering of Christ.
Therefore, to the Mass must the legionary have recourse if a plenteous sharing in the gifts of redemption is desired for oneself and for others. By reason of the fact that opportunities and circumstances differ so much, the Legion does not impose any obligation on its members in this matter. Nevertheless, solicitous for them and their work, it urges and implores each one of them to assist frequently — every day if at all possible — at Mass, and at that Mass to receive Holy Communion. Every grace which the Legion asks for through its prayers flow from the sacrifice of Jesus Christ on Calvary.
If the Mass is at the heart of all of the Legion’s actions, then the Eucharist is at the heart of the Mass. In the words of the Legion handbook, “The Eucharist is the centre and source of grace: therefore, it must be the very keystone of the legionary scheme.” Expanding further on the value of the Eucharist, the handbook states,
The Eucharist is the infinite good. For in that sacrament is Jesus himself, as much present as he was in his home at Nazareth or in the Upper Room at Jerusalem. The holy Eucharist is no mere symbol of him, or instrument of his power, but is Jesus Christ himself substantially.
As such, it is natural for the Legion to possess a great devotion to the Eucharist through the act of Adoration. As the encyclical Mysterium Fidei explains,
Liturgical laws prescribe that the Blessed Sacrament be kept in churches with the greatest honour and in the most distinguished position. The faithful should not fail to pay it an occasional visit. Such a visit is a proof of gratitude, a pledge of love, an observance of the adoration due to Christ the Lord present in the Blessed Sacrament.
In promoting Eucharistic Adoration, the Legion always seeks to demonstrate this gratitude and love.