Catechism of the Catholic Church

519 All Christ's riches "are for every individual and are everybody's property." ¹⁸⁷ Christ did not live his life for himself but for us, from his Incarnation "for us men and for our salvation" to his death "for our sins" and Resurrection "for our justification". ¹⁸⁸ He is still "our advocate with the Father", who "always lives to make intercession" for us. ¹⁸⁹ He remains ever "in the presence of God on our behalf, bringing before him all that he lived and suffered for us." ¹⁹⁰

520 In all of his life Jesus presents himself as our model. He is "the perfect man", ¹⁹¹ who invites us to become his disciples and follow him. In humbling himself, he has given us an example to imitate, through his prayer he draws us to pray, and by his poverty he calls us to accept freely the privation and persecutions that may come our way. ¹⁹²

521 Christ enables us to live in him all that he himself lived, and he lives it in us. "By his Incarnation, he, the Son of God, has in a certain way united himself with each man." ¹⁹³ We are called only to become one with him, for he enables us as the members of his Body to share in what he lived for us in his flesh as our model:

We must continue to accomplish in ourselves the stages of Jesus' life and his mysteries and often to beg him to perfect and realize them in us and in his whole Church. . . For it is the plan of the Son of God to make us and the whole Church partake in his mysteries and to extend them to and continue them in us and in his whole Church. This is his plan for fulfilling his mysteries in us. ¹⁹⁴