The genealogy of Christ: he is conceived and born of a virgin.
There’s a significance of the number forty in fasting and prayer for the humbling of the soul.
“This particular number of generations, totaling forty, is a sign of that laborious period in which, under the discipline of Christ the King, we will continue to fight against the devil. The same number was foreshadowed in both the law and the prophets, who had already solemnized a fast of forty days for the humbling of the soul (this pattern was firmly set in the narratives of Moses and Elijah, each of whom fasted for forty days). The Gospel narrative itself then again foreshadowed this same number in the fast of the Lord himself, during his forty days of temptation by the devil. What else does this narrative show than that condition of temptation which pertains to us through all the space of this age? Christ bore this temptation in the flesh when he condescended to take upon himself our own mortality. Add to this also that after his resurrection, it was his will to remain with his disciples on the earth not longer than forty days. During this time he continued to mingle his resurrected life with theirs in the form of human intercourse. He shared with them food, which mortals need for life, even though he himself would never die. All this was done with the view of signifying to them through these forty days that although his presence would be later hidden from their eyes, he would yet fulfill what he promised when he said, ‘I am with you, even to the end of the world.’ There may be other and subtler methods of accounting for the length of this age, but the most apparent anticipations within the natural order of this number are the seasons of the years, which revolve in four successive alternations. Note also the fact that the world itself has its bounds determined by four divisions (which Scripture sometimes designates by the names of the winds, east and west, north or south). The number forty then is four times the cycle completing number ten. The number ten, of course, is itself made up by adding one, two, three and four together.”(4) -St. Augustine
The purity of Christ’s conception is seen through the pure vessel of Mary. Christ’s work of salvation is obtained through the wood of the cross.
“And what offence against our awe and reverence is there, when the Deity entered into union with purity that was always dear to Him, where an Angel is mediator, faith is bridesmaid, where chastity is the giving away, virtue the gift, conscience the judge, God the cause; where the conception is inviolateness, the birth virginity, and the mother a virgin. Mary was therefore betrothed to a carpenter, because Christ the Spouse of the Church was to work the salvation of all men through the wood of the Cross.”(4) -St. John Chrysostom
Mary’s dignity is greatly honored as Mother of God.
“She alone and more than they is called the Holy Virgin, and the mother of Christ. For she bare not a simple man as ye say, but rather the Word incarnate, and made man of God the Father.”(4) -St Cyril of Alexandria
The Holy Spirit performs countless, unexplainable miracles.
“For even when nature is at work, it is impossible fully to explain the manner of the formation of the person. How then, when the Spirit is accomplishing miracles, shall we be able to express their precise causes?”(4) -St John Chrysostom
The angels praise Christ’s humanity and humility.
“The Angel seeing the depths of the Divine mercy, the laws of nature broken through and reconciliation made, He who was above all made lower than all; all these wonders, all this he comprises in that one saying, ‘Now all this hath happened.’”(4) -St John Chrysostom
Mary’s dignity and honor is above the whole world.
“It may be said, that ‘know’ here signifies simply, to understand; that whereas before he had not understood how great her dignity, after the birth he then ‘knew’ that she had been made more honorable and worthy than the whole world, who had carried in her womb Him whom the whole world could not contain.”(4) -St. John Chrysostom
Women's Prayer Group In Christ 