For an instant on the summit of Tabor, Christ unveils the splendor of his divinity, manifesting to his chosen witnesses what he really is: the Son of God, “the radiance of the glory of the Father and the imprint of his substance”; but he also makes visible the transcendent destiny of our human nature, which he took on to save us as something likewise destined, because it is redeemed by his sacrifice of irrevocable love, that we too might participate in fullness of life in the “fellowship of the saints in light.” That body, transfigured before the astonished eyes of the apostles, is the body of Christ our brother, but it’s also that of our body called to glory; the light which floods inside of it is and will be our inheritance and our splendor. We are called to share that glory because we are “partakers of the divine nature.” An incomparable lot awaits us if we have honored our Christian vocation: if we have lived in the logical consequences of word and deed what the responsibilities of our Baptism demand of us.
Blessed Paul VI
Excerpt, Angelus address for 6 August 1978, only to never deliver it –he died that day.