The Priest and his Breviary

Now the Divine Office is an entering into the prayer of Christ; it is a putting-on of the prayer of Christ; it is an identification with the prayer of Christ; it is an abiding in the Vine. Therefore, when the priest opens his Breviary, he 'enters into' the prayer of Christ in a much more real way than a monk, coming into choir where the office is being sung, 'enters-in' to the prayer of the community. It is the prayer of Christ that the priest is praying. Christ is praying in him; he is praying in Christ. He is praying in the name of Christ and in the name of each of His members.

Eugene Boylan, The Spiritual Life of the Priest