After Mary had miraculously conceived Christ the Messiah in her virginal womb by the overshadowing power of God's Holy Spirit, she learnt her barren cousin Elizabeth had also miraculously conceived in her old age and was now, for six months, waiting for the birth of her child. Mary immediately left to stay with Elizabeth in her hill country home for about three months.
"When Mary arrived at Elizabeth's home she was greeted by her husband Zachary, and in the moment Elizabeth heard the salutation, her child leapt in her womb, as in that moment both mother and child were filled with the Holy Spirit. Overjoyed, Elizabeth cried out to Mary: Blessed art thou among women, and blessed is the fruit of thy womb. Whence is this to me that the mother of my Lord should come to me? For behold, as soon as the voice of thy salutation sounded in my ears, the infant in my womb leapt for joy. Blessed are you for believing the things to be accomplished which were spoken to you by the Lord." (Luke 1:39-45)
Mary's immediate response to Elizabeth was her 'MAGNIFICAT':
After about three months, Mary returned to her own home, and Elizabeth was delivered of her son, John the Baptist, after whose birth, his father Zachary, filled with the Holy Spirit, prophesied his 'BENEDICTUS':
Mary's admonition to each of us: "Do whatever He tells you!"