When in past years I lived in Melbourne, and had the chance to pray daily before the tabernacle at St Dominic's, East Camberwell, I used to use Newman's formula for a short visit to the Blessed Sacrament, from his Meditations and Devotions, consisting of an Act of Faith in the Real Presence, and then one of the O Antiphons:
+ In the Name...I place myself in the presence of Him, in whose Incarnate Presence I am before I place myself there.I adore Thee, O my Saviour, present here as God and man, in soul and body, in true flesh and blood.I acknowledge and confess that I kneel before that Sacred Humanity, which was conceived in Mary's womb, and lay in Mary's bosom; which grew up to man's estate, and by the Sea of Galilee called the Twelve, wrought miracles, and spoke words of wisdom and peace; which in due season hung on the cross, lay in the tomb, rose from the dead, and now reigns in heaven.I praise, and bless, and give myself wholly to Him, who is the true Bread of my soul, and my everlasting joy.Sunday: O Sapientia...Monday: O Adonai...Tuesday: O Radix Jesse...Wednesday: O Clavis David...Thursday: O Oriens...Friday: O Rex Gentium...Saturday: O Emmanuel...
These Advent anthems are ideal for worship of Christ in the Eucharist, since they capture the yearning for Him that we ought have before the Blessed Sacrament - since there we wish once more to receive Him in Holy Communion, to be in union with Him, and thereby make our spiritual communion with Him - just as the old farmer explained his method of prayer to the Curé of Ars: "I look at the Good God, and the Good God looks at me." That is true Eucharistic Adoration.
Each week I was glad as Saturday came round, since Saturday was the day to pray O Emmanuel, the greatest of these Advent anthems, since it names Our Lord as the Lord our God, come to save us.
(Please follow the link to the chant, the text and the sources of O Emmanuel.)