41 Modern man is on the road to a more thorough development of his own personality, and to a growing discovery and vindication of his own rights. Since it has been entrusted to the Church to reveal the mystery of God, Who is the ultimate goal of man, she opens up to man at the same time the meaning of his own existence, that is, the innermost truth about himself. The Church truly knows that only God, Whom she serves, meets the deepest longings of the human heart, which is never fully satisfied by what this world has to offer. She also knows that man is constantly worked upon by God's spirit, and hence can never be altogether indifferent to the problems of religion. The experience of past ages proves this, as do numerous indications in our own times. For man will always yearn to know, at least in an obscure way, what is the meaning of his life, of his activity, of his death. The very presence of the Church recalls these problems to his mind. But only God, Who created man to His own image and ransomed him from sin, provides the most adequate answer to the questions, and this He does through what He has revealed in Christ His Son, Who became man. Whoever follows after Christ, the perfect man, becomes himself more of a man. For by His incarnation the Father's Word assumed, and sanctified through His cross and resurrection, the whole of man, body and soul, and through that totality the whole of nature created by God for man's use. Thanks to this belief, the Church can anchor the dignity of human nature against all tides of opinion, for example those which undervalue the human body or idolize it. By no human law can the personal dignity and liberty of man be so aptly safeguarded as by the Gospel of Christ which has been entrusted to the Church. For this Gospel announces and proclaims the freedom of the sons of God, and repudiates all the bondage which ultimately results from sin. (cf. Rom. 8:14-17); it has a sacred reverence for the dignity of conscience and its freedom of choice, constantly advises that all human talents be employed in God's service and men's, and, finally, commends all to the charity of all (cf. Matt. 22:39). This agrees with the basic law of the Christian dispensation. For though the same God is Savior and Creator, Lord of human history as well as of salvation history, in the divine arrangement itself, the rightful autonomy of the creature, and particularly of man is not withdrawn, but is rather re-established in its own dignity and strengthened in it. The Church, therefore, by virtue of the Gospel committed to her, proclaims the rights of man; she acknowledges and greatly esteems the dynamic movements of today by which these rights are everywhere fostered. Yet these movements must be penetrated by the spirit of the Gospel and protected against any kind of false autonomy. For we are tempted to think that our personal rights are fully ensured only when we are exempt from every requirement of divine law. But this way lies not the maintenance of the dignity of the human person, but its annihilation.
Source: Gaudium et Spes (Vatican.va)