CIC 1698 The first and last point of reference of this catechesis will always be Jesus Christ himself, who is “the way, and the truth, and the life.”1 It is by looking to him in faith that Christ’s faithful can hope that he himself fulfills his promises in them, and that, by loving him with the same love with which he has loved them, they may perform works in keeping with their dignity:
I ask you to consider that our Lord Jesus Christ is your true head, and that you are one of his members. He belongs to you as the head belongs to its members; all that is his is yours: his spirit, his heart, his body and soul, and all his faculties. You must make use of all these as of your own, to serve, praise, love, and glorify God. You belong to him, as members belong to their head. And so he longs for you to use all that is in you, as if it were his own, for the service and glory of the Father.2
For to me, to live is Christ.3

1 Jn 14:6.
2 St. John Eudes, Tract. de admirabili corde Jesu, 1, 5.
3 Phil 1:21.