94 The proper and immediate end of Christian education is to cooperate with divine grace in forming the true and perfect Christian, that is, to form Christ Himself in those regenerated by Baptism, according to the emphatic expression of the Apostle: "My little children, of whom I am in labor again, until Christ be formed in you." For the true Christian must live a supernatural life in Christ: "Christ who is your life," and display it in all his actions: "That the life also of Jesus may be made manifest in our mortal flesh."
Source: Divini Illius Magistri (Vatican.va)