That Pope John Paul II was profoundly formed by and faithful to the general pastoral purpose and style of Gaudium et Spes throughout his pontificate is easy to show. He not only made constant reference to Gaudium et Spes, 22 and 24, referring to the former as encapsulating the motif of his pontificate, his encyclical, Fides et Ratio, stressed the unity of the two orders of knowledge, natural and supernatural. There is a “unity of truth” assured by the fact that God is Creator and Redeemer and thus the Author of what is revealed through creation and through the economy of salvation.
Here is Gaudium et Spes 22.
The truth is that only in the mystery of the incarnate Word does the mystery of man take on light. For Adam, the first man, was a figure of Him Who was to come,(20) namely Christ the Lord. Christ, the final Adam, by the revelation of the mystery of the Father and His love, fully reveals man to man himself and makes his supreme calling clear. It is not surprising, then, that in Him all the aforementioned truths find their root and attain their crown.
He Who is “the image of the invisible God” (Col. 1:15),(21) is Himself the perfect man. To the sons of Adam He restores the divine likeness which had been disfigured from the first sin onward. Since human nature as He assumed it was not annulled,(22) by that very fact it has been raised up to a divine dignity in our respect too. For by His incarnation the Son of God has united Himself in some fashion with every man. He worked with human hands, He thought with a human mind, acted by human choice(23) and loved with a human heart. Born of the Virgin Mary, He has truly been made one of us, like us in all things except sin.(24)
The Christian man, conformed to the likeness of that Son Who is the firstborn of many brothers,(27) received “the first-fruits of the Spirit” (Rom. 8:23) by which he becomes capable of discharging the new law of love.(28) Through this Spirit, who is “the pledge of our inheritance” (Eph. 1:14), the whole man is renewed from within, even to the achievement of “the redemption of the body” (Rom. 8:23):
Such is the mystery of man, and it is a great one, as seen by believers in the light of Christian revelation.