On November 1, 1950, Pope Pius released Munificentissimus Deus, the defining dogma on The Assumption of The Blessed Mother in which he declares, through Papal Infallibility, that the Virgin Mary, having completed the course of her earth life, was assumed, body and soul, into heaven. 

Today we will hear in Revelation: 

A great sign appeared in the sky, a woman clothed with the sun,
with the moon under her feet,
and on her head a crown of twelve stars. 

She was with a child and wailed aloud in pain as she labored to give birth. 

Then another sign appeared in the sky;
it was a huge red dragon, the dragon stood before the woman about to give birth,
to devour her child when she gave birth.
She gave birth to a son, a male child,
destined to rule all the nations. 

Her child was caught up to God and his throne. The woman herself fled into the desert
where she had a place prepared by God. 

Then I heard a loud voice in heaven say: “Now have salvation and power come, and the Kingdom of our God and the authority of his Anointed One.” 

And then, in Luke, we will hear from Mary herself as she begins The Magnificat,
“My soul proclaims the greatness of the Lord;
my spirit rejoices in God my Savior”. 

Blessed Mother, Queen of Heaven and Earth, please pray for us.