(Taken from Notes Made at the Conferences of Dom Prosper Guéranger).
Thus says Mother Church: Deus, qui humanae substantiae dignitatem mirabiliter condidisti [O God, Who established the nature of man in wondrous dignity]. Why speak here of the dignity of man? Why recall here, the Divinity and Humanity of Jesus Christ? Because the Wine and Water here used are figures: the Wine represents Jesus Christ as God, the Water represents Him as Man. The weakness of the Water, compared with the strength of the Wine, expresses the difference which exists between the Humanity and the Divinity of Jesus Christ. We must see ourselves too in this water, since we it was, who by Mary, furnished Our Lord with the Humanity; thus does Holy Church express herself on this subject, in sentiments of admiration; thus does she love to put forward the true dignity of man. Already had the royal Prophet sung this our dignity, in his Psalm: Constituisti eum super opera manuum tuarum, omnia subjecisti sub pedibus ejus: Lord, Thou hast placed man over all the works of Thy Hands; Thou hast put all things under his feet (Ps. viii.). And if we recollect the manner of his creation by God, we are not surprised to hear Holy Church here saying that he was created in an admirable manner. When there is question of man, God speaks this word: “Let Us make man to Our Own Image and Likeness.” And as He said, so hath He done. But if man has been thus created, he has been moreover, raised up in a still more admirable manner, after his fall, and Holy Church fails not to say so: mirabilius reformasti [still more admirably restored it]. Yes indeed, God has up-raised him in a manner far exceeding, in wonder, that of His creation, in espousing human nature by His Son, and so reforming fallen man.