CIC 29 But this “intimate and vital bond of man to God” (GS 19 § 1) can be forgotten, overlooked, or even explicitly rejected by man.1 Such attitudes can have different causes: revolt against evil in the world; religious ignorance or indifference; the cares and riches of this world; the scandal of bad example on the part of believers; currents of thought hostile to religion; finally, that attitude of sinful man which makes him hide from God out of fear and flee his call.2

CIC 546 Jesus’ invitation to enter his kingdom comes in the form of parables, a characteristic feature of his teaching.3 Through his parables he invites people to the feast of the kingdom, but he also asks for a radical choice: to gain the kingdom, one must give everything.4 Words are not enough, deeds are required.5 The parables are like mirrors for man: will he be hard soil or good earth for the word?6 What use has he made of the talents he has received?7 Jesus and the presence of the kingdom in this world are secretly at the heart of the parables. One must enter the kingdom, that is, become a disciple of Christ, in order to “know the secrets of the kingdom of heaven”.8 For those who stay “outside”, everything remains enigmatic.9

CIC 787 From the beginning, Jesus associated his disciples with his own life, revealed the mystery of the Kingdom to them, and gave them a share in his mission, joy, and sufferings.10 Jesus spoke of a still more intimate communion between him and those who would follow him: “Abide in me, and I in you. .. I am the vine, you are the branches.”11 And he proclaimed a mysterious and real communion between his own body and ours: “He who eats my flesh and drinks my blood abides in me, and I in him.”12

1 GS 19 § 1.
2 Cf. GS 19-21; Mt 13:22; Gen 3:8-10; Jon 1:3.
3 Cf. Mk 4:33-34.
4 Cf. Mt 13:44-45; 22:1-14.
5 Cf. Mt 21:28-32.
6 Cf. Mt 13:3-9.
7 Cf. Mt 25:14-30.
8 Mt 13:11.
9 Mk 4:11; cf. Mt 13:10-15.
10 Cf. Mk 1:16-20; 3:13-19; Mt 13:10-17; Lk 10:17-20; 22:28-30.
11 Jn 15:4-5.
12 Jn 6:56.