When Mary reached the age of three, her parents fulfilled their vow. Together with their family and friends, they took her to the Temple. The High Priest and other Temple priests greeted the procession, and tradition says that the child was brought before the fifteen high steps which led to the sanctuary. It is said that the child Mary made her way to the stairs and, strengthened by the Holy Spirit, ascended all fifteen steps, coming to the Holy of Holies where only the High Priest could enter. Tradition then says that the High Priest, acting outside every rule he knew, led the Holy Virgin into the Holy of Holies, astonishing everyone present in the Temple. So it was that she, whose own womb would become the Holy of Holies, came into the presence of the God Whom she would bear.
St. Joachim and St. Anne returned to their home, but the Handmaid of the Lord remained in the Temple until her espousal, where she was prepared by God and protected by angels.
O God, who on this day didst vouchsafe that blessed Mary Ever-Virgin, the dwelling-place of the Holy Ghost, should be presented in the Temple: Grant, we beseech thee; that by her intercession we may be found worthy to be presented unto thee in the temple of thy glory; through Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the same Holy Ghost, ever one God, world without end. Amen.