It was fitting...

"It was fitting that she, who had kept her virginity intact in childbirth, should keep
her own body free from all corruption even after death. It was fitting that she, who
had carried the Creator as a child at her breast, should dwell in the divine tabernacles.
It was fitting that the spouse, whom the Father had taken to himself, should live
in the divine mansions. It was fitting that she, who had seen her Son upon the cross
and who had thereby received into her heart the sword of sorrow which she had
escaped in the act of giving birth to him,
should look upon him as he sits with the Father.
It was fitting that God's Mother should possess what belongs to her Son, and that
she should be honored by every creature as the Mother and as the handmaid of God."

Pope Pius XII — Definition of the Dogma of the Assumption
of the Blessed Virgin Mary