Mary was assumed into heaven. The Early Church Fathers wrote about what happened. It’s also called The Dormition of Mary by the Orthodox Church.
Didn’t make it into the New Testament, though.
You’d a thought John might have mentioned it while he was busy watching the end of the world in his Revelation.
Sorry. Extra-Scriptural stuff doesn’t count for doctrine.
Kinda like saying what the Constitutional Convention really meant was....except we’re talking about God and Eternity.