Catechism of the Catholic Church: 1422
Article 4 THE SACRAMENT OF PENANCE AND RECONCILIATION
1422 "Those who approach the sacrament of Penance obtain pardon from God's mercy for the offense committed against him, and are, at the same time, reconciled with the Church which they have wounded by their sins and which by charity, by example, and by prayer labors for their conversion."4
4 LG 11 # 2
There are four steps in the Sacrament of Reconciliation: (Example from Immaculate Heart of Mary)
Sin hurts our relationship with God, ourselves and others. As the Catechism states:
The sinner wounds God’s honor and love, his own human dignity…and the spiritual well-being of the Church, of which each Christian ought to be a living stone. To the eyes of faith no evil is graver than sin and nothing has worse consequences for the sinners themselves, for the Church, and for the whole world. (CCC 1487, 1488)
A mature understanding of sin includes reflecting upon our thoughts, actions and omissions as well as examining the patterns of sin that may arise in our lives. With contrite hearts, we are also called to reflect upon the effects of our sins upon the wider community and how we might participate in sinful systems.
Contrition and conversion lead us to seek a forgiveness for our sins so as to repair damaged relationships with God, self, and others. We believe that only ordained priests have the faculty of absolving sins from the authority of the Church in the name of Jesus Christ (CCC 1495). Our sins are forgiven by God, through the priest.
The Spiritual effects of the Sacraments of Reconciliation include:
Individual confession with a priest is the principal means of absolution and reconciliation of grave sins within the Church. The Sacrament of Reconciliation frees us from sinful patterns of behavior and calls us to complete conversion to Christ. Reconciliation heals our sins and repairs our relationships.