By promulgating the Bull Munificentissimus Deus, 1 November, 1950, Pope Pius XII declared infallibly that the Assumption of the Blessed Virgin Mary was a dogma of the Catholic Faith. Likewise, the Second Vatican Council taught in the Dogmatic Constitution Lumen Gentium that "the Immaculate Virgin, preserved free from all stain of original sin, was taken up body and soul into heavenly glory, when her earthly life was over, and exalted by the Lord as Queen over all things (n. 59)."
This is a beautiful sign of hope for our resurrection into Heaven.
Sorry,I'm in a hurry...will finish this later.