DIVINE INTIMACY by Fr. Gabriel of St. Mary Magdalen, O.C.D.
#164. LITURGICAL PRAYER
Just as our spiritual life is born, grows, and develops in the bosom of the Church, so our prayer, which is the highest expression of the spiritual life, should be inserted in the prayer of the Church, that is, in liturgical prayer. Liturgical prayer has a special excellence because it is not the prayer, however sublime and elevated, of individual souls, but is the prayer that the whole Church addresses to God, in union with Jesus, Her Spouse and her Head. It is something like a prolongation of Jesus’ prayer; indeed, it is a participation in those supplications which He Himself always offers to the Father. In the glory of heaven and in humble effacement on our altars, He praises Him in the name of all creatures and for the needs of each one in particular. “The sacred liturgy is the public worship given to the Father by our Redeemer as Head of the Church; it is the worship which the society of the faithful render to their Head and through Him, to the eternal Father” (Encyclical: Mediator Dei).
Perhaps in accord with lex orandi, lex credendi, the change from I to We is some how related to the identity crisis, we see now the need to regain the "identity" of the "I" at prayer in the liturgy.