Shaping the attitudes of reconciliation with God is based on faith and its maturity. The faith is the mature Christian finds his relationship with Christ, which is full of mercy comes in and reveals to man that God’s grace is strengthening the unity with God the Father and leads to unity merciful with each man. In instituting the sacrament of reconciliation, Christ desires this unity with God was felt by Christians as a natural state, while sin is a violation of this natural state of man. Hence the sacrament of reconciliation of the sinner with God through the grace of conversion should arouse a sense of the state of perfect contrition and repentance leading to change attitudes and spread around her acts of charity. To the renewal of experiencing health penance – reconciled should be taken post-baptismal catechumenate immersed in the evangelization of showing the person of Jesus Christ entering into force of man and worried its problems. The world will find peace and human happiness only in the mercy.