“The Visitation.  The Gospel tells us, “In the days that followed, Mary rose up and went with all haste to a city of Judea, in the hill country, where Zachary dwelt; and there entering in she gave Elizabeth greeting.  No sooner had Elizabeth heard Mary’s greeting, than the child leaped in her womb; and Elizabeth herself was filled with the Holy Ghost; so that she cried out with a loud voice, ‘Blessed art thou among women, and blessed is the fruit of thy womb’ (Luke 1:39-42).
The first miracle worked by our Lord on earth was performed while He was still in His Mother’s womb.  He stirred the unborn John and brought consciousness of His presence to Elizabeth, the cousin of His Mother.  Thus, long before Cana, our Lord shows that it is through His Mother that He works His unseen wonders in the heart and through her that He is brought into the souls of men.
The joy of the second Joyful Mystery is that of the Old Testament meeting the New, and of the young maiden greeting the old woman, as Mary burst into the most revolutionary song that was ever sung, the Magnificat, foretelling the day when the mighty would be unseated from their thrones, and the poor would be exalted.
Yet at that moment, when Elizabeth is the first to call her the Mother of God, even before our Lord is born, Mary answers in her song that her greatness is due to Him, and that she was chosen because she was lowly.  It may very well be that Mary was chosen to be the Mother of God after she had in her vow renounced the honor.  Though greater than Elizabeth, she visits her in her hour of need.  Only as we become little do we ever become great in the eyes of God.”  Archbishop Fulton Sheen (The Fifteen Mysteries of the Rosary)