St. Louis recognizes these facts on the one hand and on the other that there was no mistake. There are no mistakes in the life of Our Lord. Everything that He does is most exactly according to the plan of the Father and the most perfect thing that could be done. Here we have a mystery that the human mind cannot reconcile: on the one hand, the fact that Our Lord’s life was perfect in every respect, and on the other that He spent 30 years subject to Our Lady. How is it that this was the very best plan?

[Our Lord] did not disdain to shut Himself up in the womb of the Blessed Virgin, as a captive and as a loving slave, and later to be subject and obedience to her for thirty years. It is here that the human mind loses itself, when it seriously reflects on the conduct of the Incarnate Wisdom who willed to give Himself to men—not directly, though He might have done so, but through the Blessed Virgin. (True Devotion to Mary, §139)

St. Louis indicates that Our Lord also chose to be dependent upon Our Lady in the working of His miracles, saying the following:

If we examine closely our Blessed Lord’s life, we shall see that it was His will to begin His miracles by Mary. He sanctified St. John in the womb of his mother, St. Elizabeth, but it was by Mary’s word. No sooner had she spoken than John was sanctified; and this was His first miracle of grace. At the marriage of Cana He changed the water into wine, but it was at Mary’s humble prayer; and this was His first miracle of nature. He began and continued His miracles by Mary, and He will continue them to the end of ages by Mary. (True Devotion to Mary, §19)