“The proclamation of the Word of God has Christian conversion as its aim: a complete and sincere adherence to Christ and his Gospel through faith. Conversion is a gift of God, a work of the Blessed Trinity. It is the Spirit who opens people’s hearts so that they can believe in Christ and “confess him” (cf. 1 Cor 12:3); of those who draw near to him through faith Jesus says: “No one can come to me unless the Father who sent me draws him” (Jn 6:44).
“From the outset, conversion is expressed in faith which is total and radical, and which neither limits nor hinders God’s gift. At the same time, it gives rise to a dynamic and lifelong process which demands a continual turning away from “life according to the flesh” to “life according to the Spirit” (cf. Rom 8:3-13). Conversion means accepting, by a personal decision, the saving sovereignty of Christ and becoming his disciple.” (Bl. Pope John Paul II, REDEMPTORIS MISSIO: On the permanent validity of the Church’s missionary mandate, #46)