to God; only thus can his own nature, too, constitute a fact of life and existential fulness, a fact of unity and communion of hypostases free from corruption and death. But this existential change in the human nature “altered” by the fall is beyond the capacities of fallen man. It is fundamentally the work of the head of a new humanity: the work of the second Adam, Christ, who in His own person summed up and recreated human nature as a whole, the mode of man’s existence. It is the existential reality