In proclaiming the Good News of Revelation to the world, evangelization invites men and women to conversion and faith. 140Cf. Rm 10:17; LG 16 and AG 7; cf. CCC 846-848. The call of Jesus, "Repent and believe in the Gospel", (Mk 1,15) continues to resound today by means of the Church's work of evangelization. The Christian faith is, above all, conversion to Jesus Christ, 141Cf. AG 13a. full and sincere adherence to his person and the decision to walk in his footsteps. 142Cf. CT 5b. Faith is a personal encounter with Jesus Christ making, of oneself a disciple of him. This demands a permanent commitment to think like him, to judge like him and to live as he lived. 143Cf. CT 20b. In this way the believer unites himself to the community of disciples and appropriates the faith of the Church. 144Cf. CCC 166-167.
This "Yes" to Jesus Christ, who is the fullness of the revelation of the Father is twofold: a trustful abandonment to God and a loving assent to all that he has revealed to us. This is possible only by means of the action of the Holy Spirit. 145Cf. CCC 150 and 176. "By faith man freely commits his entire self completely to God, making the full submission of his intellect and will to God who reveals, and willingly assenting to the Revelation given by him". 146DV 5. "To believe has thus a double reference: to the person and to the truth; to the truth, by trust in the person who bears witness to it". 147CCC 177.
Faith involves a change of life, a "metanoia", 148Cf. EN 10; AG 13b; CCC 1430-1431. that is a profound transformation of mind and heart; it causes the believer to live that conversion. 149EN 23. This transformation of life manifests itself at all levels of the Christian's existence: in his interior life of adoration and acceptance of the divine will, in his action, participation in the mission of the Church, in his married and family life; in his professional life; in fulfilling economic and social responsibilities. Faith and conversion arise from the "heart", that is, they arise from the depth of the human person and they involve all that he is. By meeting Jesus Christ and by adhering to him the human being sees all of his deepest aspirations completely fulfilled. He finds what he had always been seeking and he finds it superabundantly. 150Cf. AG 13. Faith responds to that "waiting", 151Cf. RM 45c. often unconscious and always limited in its knowledge of the truth about God, about man himself and about the destiny that awaits him. It is like pure water 152Cf. RM 46d. which refreshes the journey of man, wandering in search of his home. Faith is a gift from God. It can only be born in the intimacy of Man's heart as a fruit of that "grace [which] moves and assists him", 153DV 5; cf. CCC 153. and as a completely freeresponse to the promptings of the Holy Spirit who moves the heart and turns it toward God, and who "makes it easy for all to accept and believe the truth". 154Ibidem. The Blessed Virgin Mary lived these dimensions of faith in the most perfect way. The Church "venerates in Mary the purest realization of faith". 155CCC 149.