According to the Catechism of the Catholic Church, Mary is a virgin because her virginity is the sign of her faith unadulterated by any doubt, and of undivided gift of herself to God’s will. She is full of grace and she is the most excellent fruit of redemption. She remained a virgin in conceiving her Son, a virgin in carrying him, a virgin in nursing him at her breast, always a virgin. St. Augustine said that with her whole being “she is the handmaid of the Lord.”
We all know that Jesus was conceived solely by the power of the Holy Spirit. The virginal conception of Jesus is a divine work. When Mary uttered her “yes”, it was the fulfillment of the promise given through the prophet Isaiah: “Behold, a virgin shall conceive and bear a son.” By her obedience she became the new Eve, mother of the living.
Mary is a virgin because Jesus was conceived by the Holy Spirit and not by man (Joseph). This makes Mother Mary truly admirable. At a young age she responded to God’s great call to be ever-virgin. She loved God wholeheartedly; thus she obeyed His will and became the mother of our Savior Jesus Christ.
(Sweet Fatima Roque, Full-time pastoral worker)