"Behold the Handmaiden of the Lord"
Because in as much as we share in Christ's Father by His incarnation, death, and resurrection for us, we share in His mother too; and her motherhood of her Son and all who are found in Him continues uninterrupted by grace, from her consent to the Annunciation, to her unwavering love at her Son's Cross, to the eternal fulfillment of her Son's mission in the consummation of all His people. May God's children honor her accordingly.
... and speaking of the Church's emulation of Mary's motherhood, check out this awesome ministry of Young Life to unwed teen mothers and their little ones... "Young Lives." I love it.