There is Emptiness: Before Our Genesis

"And the angel being come in, said unto her: Hail, full of grace, the Lord is with thee: blessed art thou among women."
St Luke 1:28 DRC1752
Full of Grace, those words chosen by God to address Mary, yes chosen by God and not by the angel himself, since an angel is a messenger of God, and as a messenger, he does not transmit his message, but the message of his Lord, the Master, and Lord of the angel is God, and the message the angel proclaimed, was and is the message of God. In Luke 1:28, Luke uses the Greek word 'Kecharitomene' which is the perfect tense of the word grace, that indicates that Mary was always full of grace, and to be full of Grace, means to be free from sin. No other human is free from sin since the beginning besides Jesus and Mary, for St. Paul says in Philippians 3:12, "Not as though I have already attained, or were already perfect; but I follow after, if I may by any means apprehend, wherein I am also apprehended by Christ Jesus.", but yet Mary since the beginning has being free from sin, for even the angel said "...The Lord is with you" (Rf St Luke 1:28), he did not say "The Lord will be with you" meaning that since the beginning the Lord was with Mary, and Mary was with the Lord, as St. Hippolytus explains in 190 AD: "Now the Lord was without sin, being in his human nature from INCORRUPTIBLE WOOD, THAT IS FROM THE VIRGIN, and being sheathed, as it were, with the pure gold of the Word within and of the Spirit without". How can we say that the table was made from an oak tree, if we mix pine and oak wood to make the table? The only way, we can truly say the table is from oak wood, is to only use oak, therefore, the same way, the purity of Mary comes to be, otherwise Luke wouldn't have chosen the perfect tense of the word Kecharitomene.
Mary is not a mediator between us and The Father, rather, she is the Matriarch of Christianity, for she was chosen by God to become our Mother, for it is the truth that is given to us in the Gospel of St John that Jesus said, "After that, he saith to the disciple: Behold thy mother. And from that hour, the disciple took her to his own."
(St John 19:27). For it is in the Old Covenant that Sarah is the Matriarch of the chosen people, and Abram, who became the Patriarch of the chosen people becomes Abraham, for God gives him a New Name. But the prophet Isaiah tells us that Sarah was the Mother of Israel (Rf Isaiah 51:1-2), and Abraham is referred as the Father of Israel (Romans 4:1-18). Sarah's title of Matriarch (of Mother) continues even after she died (Rf Isaiah 51:1-2), however, Mary, she becomes the Queen of the New Israel, the New Chosen people, since in the Davidic Kingdom, the Mother of the King becomes the Queen and the Matriarch of the kingdom (Rf Ezekiel 37:24-26, 1 Kings 2:19, 11:18-19, 14:21; 15:9-10; 22:42; 2 Kings 12:2; 14:2; 15:2; 15:33; 18:2; 21:2; 21:19; 22:1; 23:31; 23:36; 24:8; 24:18; Genesis 16:4, 8, 9.), therefore it makes Biblical sense that Mary is Our Matriarch.
Mary is alive in heaven, she can hear us, and she can pray for us, just as the Elders can (Rf Relevation 5:8), and we have a God of life, a God of the living, "I am the God of Abraham, and the God of Isaac, and the God of Jacob? He is not the God of the dead, but of the living." (St Matthew 22:32). She as well, she is the Queen of the New Israel, therefore she sits at the right of the King (Jesus).
Mary, she is the Ark of the New Covenant. The Ark of the Old Covenant contained the Manna, Aaron's Rod and the Ten Commandments, "Having a golden censer, and the ark of the testament covered about on every part with gold, in which was a golden pot that had manna, and the rod of Aaron, that had blossomed, and the tables of the testament." (Hebrews 9:4), Mary, as well, carried the fulfilment of all these types in her body. She carried the 'true Manna from Heaven' "Then Jesus said to them: Amen, amen I say to you Moses gave you not bread from heaven, but my Father giveth you the true bread from heaven." (St John 6:32), the true High Priest, "Wherefore, holy brethren, partakers of the heavenly vocation, consider the apostle and high priest of our confession, Jesus" (Hebrews 3:1), and the WORD made flesh, "And the Word was made flesh, and dwelt among us, (and we saw his glory, the glory as it were of the only begotten of the Father,) full of grace and truth." (St John 1:14).
Mary, Mother of all Christians, pray for us.