St Luke's account of the Annunciation of the angel Gabriel to the Blessed Virgin Mary contains numerous mysteries:
1) "Hail, full of grace" indicates that our Lady was conceived without original sin.
2) "How can this be, since I do not know man?" indicates that our Lady had made a vow of virginity.
3) "It is now the sixth month for her who was called barren" allows us to date the birth of our Lord to late December - Jesus really was born on December 25th.
Listen online [here]!