From the Treasury of Daily Prayer:
Thirty-two days after Jesus' circumcision and seventy weeks after the announcement of John's birth to Zechariah by the angel Gabriel, the Lord comes
to His temple to fulfill the Torah (Luke 2:22-38). The days are indeed fulfilled with the presentation. Jesus' parents keep the Torah and fulfill it by bringing Jesus to His true home. Also, Jesus' parents offer the alternative sacrifice of two turtledoves or two pigeons. Leviticus 12:8 allows this instead of a lamb (showing the poverty and humility of Joseph and Mary). Yet no lamb was necessary because already here at forty days old, Jesus is the Lamb brought to His temple for sacrifice. Simeon's Nunc Dimittis is a beautiful example of the immediate response to this inauguration of God's consolation and redemption in the Christ Child. Speaking to Mary, Simeon also prophesies about the destiny of the child (TDP, pp. 1176-1177).
And when he saw the child, Simeon sang:
"Lord, now You let Your servant go in peace; Your word has been fulfilled. My own eyes have seen the salvation which You have prepared in the sight of every people: a light to reveal You to the nations and the glory of Your people Israel" (Luke 2:29-32).
And so we pray:
Almighty and ever-living God, as Your only-begotten Son was this day presented in the temple in the substance of our flesh, grant that we may be presented to You with pure and clean hearts; through Jesus Christ, our Lord, who lives and reigns with You and the Holy Spirit, on God, now and forever (TDP, p. 1176)