Youcat commented through CCC - Question n. 80 - Part IV.

YOUCAT Question n. 80 - Part IV. Why is Mary a Virgin?

(Youcat answer - repeated) God willed that Jesus Christ should have a true human mother but only God himself as his Father, because he wanted to make a new beginning that could be credited to him alone and not to earthly forces.       

A deepening through CCC

(CCC 487) What the Catholic faith believes about Mary is based on what it believes about Christ, and what it teaches about Mary illumines in turn its faith in Christ. (CCC 492) The "splendour of an entirely unique holiness" by which Mary is "enriched from the first instant of her conception" comes wholly from Christ: she is "redeemed, in a more exalted fashion, by reason of the merits of her Son" (LG 53, 56). The Father blessed Mary more than any other created person "in Christ with every spiritual blessing in the heavenly places" and chose her "in Christ before the foundation of the world, to be holy and blameless before him in love" (Cf. Eph 1:3-4).   

Reflecting and meditating 

(Youcat comment) Mary’s virginity is not some outdated mythological notion but rather fundamental to the life of Jesus. He was born of a woman but had no human father. Jesus Christ is a new beginning in the world that has been instituted from on high. In the Gospel of Luke, Mary asks the angel, “How can this be, since I have no husband?” ( do not sleep with a man, Lk 1:34); the angel answered, “The Holy Spirit will come upon you” (Lk 1:35). Although the Church from the earliest days was mocked on account of her belief in Mary’s virginity, she has always believed that her virginity is real and not merely symbolic.    

(CCC Comment)

(CCC 495) Called in the Gospels "the mother of Jesus", Mary is acclaimed by Elizabeth, at the prompting of the Spirit and even before the birth of her son, as "the mother of my Lord"(Lk 1:43; Jn 2:1; 19:25; cf. Mt 13:55; et al.). In fact, the One whom she conceived as man by the Holy Spirit, who truly became her Son according to the flesh, was none other than the Father's eternal Son, the second person of the Holy Trinity. Hence the Church confesses that Mary is truly "Mother of God" (Theo-tokos) (Council of Ephesus (431): DS 251).     

(This question: Why is Mary a Virgin?  is continued)