The Entry of the Holy Theotokos into the Temple is one of the twelve major church feasts and is numbered among those that affect our salvation. What takes place on this day? The three-year-old Child, the Most-holy Virgin Mary, is brought by Her parents to the temple of Jerusalem. She is placed on the temple steps and, moved by Divine revelation, the high priest Zacharias comes out to Her and leads Her into the Holy of Holies – the place where God Himself was mysteriously present, the place which no man could ever enter except the high priest, who, moreover, went in only once a year and not without sacrificial blood. And it is precisely this place, the Holy of Holies, which the Virgin Mary enters, invisibly carrying within Herself a new, living sacrifice – the forthcoming Christ, Saviour of the world, Who will sacrifice Himself in order to deliver all men from sin and death.
This holiday is “wondrous,” as sings the Church, not finding words to express the inexpressible joy, hope and expectation which commence with today’s event.
From a mysterious and grace-filled seed there will grow up a new covenant between God and man. The Saviour’s most-pure, animate temple – the Most-holy Maiden, precious bridal chamber, sacred treasure of God’s glory – is led into the Lord’s temple. And She brings with Her the foreshadowing of God’s goodwill to all of mankind, the beginning of a new covenant between God and man, the end of the many centuries of man’s alienation from God, and the end of our bondage to sin. Only a brief time remains, only several more years, for the fulfillment of that which the entire humanity awaits – the appearance of God Himself in the flesh, by way of the Most-holy Virgin.
Source: https://orthochristian.com/66136.html