The parallel of the assumption of human nature by the Word, Christ’s assumption into Heaven, the assumption of all that is good in creation by the Church and the Assumption of Mary:
In Thomas, we see the assumption of human nature in all its fragility and glory by the Word of God in the Incarnation when He came down to earth. Then Christ, body, soul, and Divinity, was assumed into Heaven.
Fr. Robert Barron points out that the Church reflects the Logos, God manifested in expression, so that “whatever is good, true, and beautiful in other religions, philosophies or cultures can find its home within the Church of Christ,” in the DVD series, Catholicism, Episode 6: A Body Both Suffering and Glorious: The Mystical Union of Christ and the Church, (Word on Fire Catholic Ministries, 2011) in discussing “The Church is One,” The Church, therefore, reflects and imitates the Son’s assumption of all humanity in his human nature by assuming all that reflects Him in creation and in human thought and activity into itself. This is most clearly seen in the openness of Vatican to the World in Gaudium et Spes, and to other religions in its three documents: Nostra Aetate, Unitatis Redintegratio, and Orientalium Ecclesiarum.
Finally, with Mary’s, which indeed parallels the others, each being the Divine assumption of the human into closer union with Himself, we see our ultimate end and the crescendo of the other two, the assumption of the saved, body and soul into the life of God in heaven. At that moment, Christ’s assumption of our human nature, His place at the right hand of the Father, His renewal of all creation and the welcoming of His adopted sisters and brothers will be manifest for all to witness.