The first word that we hear in the conversation with the angel at the Annunciation to Mary is, “How shall this happen, since I know not man?” It is the simple recognition of her virginal purity. She had consecrated her whole heart and all the strength of her body, soul, and spirit to the service of God in undivided surrender.
Thereby she pleased the Almighty. He accepted her surrender and blessed her with wonderful fruitfulness by raising her to be the Mother of God. She looked deeply into the mystery of virginity of which her divine Son later said, “Whoever can accept this, ought to do so.” Her heart exulted in glory as she discovered what God had prepared for those who love him.
Saint Edith Stein
For the First Profession of Sister Miriam of Little St. Thérèse July 16, 1940
Stein, E. 2014, The Hidden Life: hagiographic essays, meditations, spiritual texts, translated from the German by Stein, W, ICS Publications, Washington DC.