63 h, I (Blue Book)
Therefore in order to recognize this action of mine, you must have the eyes of a little child, the mind of a little child, the heart of a little child. You must again become simple, humble, recollected, poor, innocent. You must truly become once again those little children to whom alone will be revealed the plans of God, the mysteries of the kingdom of God. Thus the interior space of your souls will be brightened, and your hearts will be truly transfigured because I myself will imprint my image upon them.
Mark 10:13-16
And they were bringing children to him that he might touch them, and the disciples rebuked them. But when Jesus saw it, he was indignant and said to them, “Let the children come to me; do not hinder them, for to such belongs the kingdom of God. Truly, I say to you, whoever does not receive the kingdom of God like a child shall not enter it.” And he took them in his arms and blessed them, laying his hands on them.
Children have a docility about them, an eagerness to believe, they don’t over think things. They instinctively know who to trust and how to do it well, in full dependence, no egoism involved. Sin has not yet impeded this wondrous relationship with their Creator and the world around them since their Baptism, so grace abounds in them. The Sacrament of Penance and Reconciliation restores this to the rest of us who have succumbed to sinfulness.
1468 “The whole power of the sacrament of Penance consists in restoring us to God’s grace and joining us with him in an intimate friendship.”73 Reconciliation with God is thus the purpose and effect of this sacrament. For those who receive the sacrament of Penance with contrite heart and religious disposition, reconciliation “is usually followed by peace and serenity of conscience with strong spiritual consolation.”74 Indeed the sacrament of Reconciliation with God brings about a true “spiritual resurrection,” restoration of the dignity and blessings of the life of the children of God, of which the most precious is friendship with God.75(Catechism of the Catholic Church)