By his virginal conception Jesus begins a new era in salvation, namely, the birth of children adopted by the Holy Spirit through faith. This new life comes not from "the will of the flesh nor the will of man, but of God" (Jn 1:16). Accepting this new life is virginal, a gift from the Spirit.
Mary's virginity is a sign of her own faith. As both virgin and mother, Mary is a perfect symbol for the Church who receives God's Word in faith and brings forth children in the Spirit
At the Last Supper with his apostles on the eve of his passion Jesus anticipated, that is, both symbolized his free self-offering and made it really present: “This is my Body which is given for you” (Luke 22:19), “This is my Blood which is poured out...” (Matthew 26:28) Thus he both instituted the Eucharist as the “memorial” (1 Corinthians 11:25) of his sacrifice and instituted his apostles as priests of the new covenant. Please click here to learn more about Holy Mass, also known as the celebration of the Holy Eucharist.