Belief in the Assumption of our Lady goes back to early Christian tradition.It found expression gradually in the writings of the Fathers and in various liturgies ( at Jerusalem from the 6th century, at Rome from the 7th). Finally, on November 1, 1950, Pius XII proclaimed solemnly, as part of divine revelation that ” the blessed Virgin Mary, the Immaculate Mother of God, at the close of her earthly career was taken into heaven,body and soul.”
The Prayers of this day ask that, after Mary’s example, we may long for heaven, obtain the glorious resurrection and enjoy everlasting bliss.
“All generations shall call me blessed, because He that is mighty hath done great things to me.” Out of the Magnificat . Luke 1, 46-55