Adult Faith Formation is simply the continual commitment by adult Catholics to strengthen their discipleship in Jesus Christ through ongoing catechesis, prayer, sacrament, and service.
According to the United States Bishops' Document, Our Hearts Were Burning Within Us:
"Adult faith formation, by which people consciously grow in the life of Christ through experience, reflection, prayer, and study, must be the "the central task in [this] catechetical enterprise," becoming "the axis around which revolves the catechesis of childhood and adolescence as well as that of old age." (OHWB #5)
The focus of Adult Faith Formation ought to be centered on the sacramental life of the Church. By helping individuals deepen their relationship with the Lord, such ongoing formation is vital to becoming a fully mature Christian who is knowledgeable about the faith, regularly participates in the sacraments, and is seeking to live a life of holiness accoridng to the mission Jesus gives to his disciples.