“A great sign appeared in heaven: a Woman clothed with the sun, and the moon under her feet, and on her head a crown of twelve stars. Sing ye to the Lord a new canticle: because He has done wonderful things…” (from the introit for today’s Mass.)
“Through thee redeemed to endless life, thy praise let all the nations sing.”
On this her feast day, we are called to consider that “that which has been realized in her, the total glorification of our humanity, will be realized for us at the end of time. This privilege is very fitting for her, all-pure, all-holy, whose body was never touched by any slightest shadow of sin, but was always the temple of the Holy Spirit, the Ark of the Covenant, the very Tabernacle of the Son of God. … Mary has been taken up into Heaven because she is the Mother of God. This is the greatest of her privileges., the root of all others and the reason for them…Mary’s Assumption thus confirms us in this great and beautiful truth: we are created and called to union with God. (Father Gabriel of St. Mary Magdalen, Divine Intimacy,).
Another reason exists for the Assumption of Mary; it is a quite practical one and can be proved scientifically. There are some truths that simply cannot, indeed, will not be denied. As such, the beautiful Eucharistic miracles which prove that the Consecrated Host is truly the body and blood (Type AB no less!) of Our Lord Jesus Christ.
And we now have scientific documentation of a process called microchimerism, which refers to the process of transfer of the maternal and infant cells during pregnancy. In other words, scientists now know that it is likely that the Blessed Virgin Mary and Our Lord Jesus Christ each harbor each other’s cells in their bodies. Therefore it is even more credible that Christ Our Lord brought His Mother, body and soul to be with Him in Heaven. (For more on microchimerism, see here, and here.)