Homily for the Solemnity of the Assumption, 15 August 2011 — Vatican.va English text (official text, quoted at the cited paragraph)
The passage from the Book of Revelation also indicates another important aspect of Mary’s reality. As the living Ark of the Covenant, she has an extraordinary destiny of glory because she is so closely united to the Son whom she welcomed in faith and generated in the flesh, as to share fully in his glory in Heaven.
This is what the words we have heard suggest: “A great portent appeared in heaven, a woman clothed with the sun, with the moon under her feet, and on her head a crown of twelve stars; she was with child.... She brought forth a male child, one who is to rule all the nations” (12:1-2; 5).
The greatness of Mary, Mother of God, full of grace, fully docile to the action of the Holy Spirit, already lives in God’s Heaven with her whole being, body and soul. St John Damascene, referring to this mystery in a famous homily, said: “Today the holy Virgin of Virgins is presented in the heavenly temple.... Today the sacred and living Ark of the living God [the Ark], who conceived her Creator himself, takes up her abode in the temple of God, not made by human hands” (Homily II on the Dormition, 2, PG 96, 723); and he continues: “It was meet that she, who had who had sheltered the divine Logos in her own womb, should inhabit the tabernacles of her Son.... The place of the Bride whom the Father had espoused, was in the nuptial chambers of Heaven” (ibid., 14 PG 96, 742).
This text is under copyright; the cited paragraph is quoted for study, with a link to the full document. Translation: Vatican.va English text.
Why Pitre cites it
'As the living Ark of the Covenant, she has an extraordinary destiny of glory… already lives in God's Heaven with her whole being, body and soul.' The Ark is Mary's body, not only her soul.
Notes
Three consecutive paragraphs (the Revelation 12 passage, the quotation of Rev 12:1-2, and the paragraph on Mary in Heaven with the St John Damascene citation). Vatican.va uses a curly apostrophe in "God’s Heaven". The homily's earlier paragraphs on Mary as the true Ark (1 Kgs 8 / Rev 11:19) are not reproduced.