Confession

I've come across a nice article on confession here. Here's the obligatory citation:

The first turning point of spiritual healing is in the Sacrament of Baptism. Here the believer is cleansed from all sins and is spiritually reborn for righteous living. However, the predisposition towards sin, which is interwoven with his free will, is not completely eliminated. As time passes, an individual falls into sin due to carefree ways, inexperience, and different temptations. Supposedly eliminated, sin, similar to cancerous cells left after surgery, begins to propagate once again, gaining strength and striving to totally control the individual's will. The individual once again becomes spiritually sick and consequently unhappy and bitter.

In this difficult and dogged battle with sin, the Sacraments of Confession and Communion are powerful tools available to us. In the Sacrament of Confession the penitent Christian, in the presence of the spiritual confessor, opens to God his darkened and sick heart and allows the heavenly light to enter, cleanse and heal it. In Confession, as in Baptism, the great rebirthing power of the crucified Son of God is concealed. This is the reason that after this Sacrament, the truly penitent person feels cleansed and renewed, as a newly baptized infant. He obtains new strength to battle the evil within himself and to restart a righteous life.
...
Repentance, to be effective, should not be limited just to awareness of ones sinfulness or to a cold admission of unworthiness. It should be accompanied with a deep feeling of regret and a sincere desire to become a different person. It requires the decision to battle with one's evil inclinations and the will to correct one's way of life. The penitent opens his soul to God, the true and loving Physician, and asks for mercy and help in the battle with bad tendencies. Such heartfelt contrition is necessary so that the effectiveness of the Sacrament will extend not only to the removal of committed sins but also to bring the Divine remedy into the receptive soul and strengthen it against future temptations.
...
At the end the penitent kneels before the cross, and the priest, covering the head of the penitent with his stole, reads the following prayer of absolution:

O Lord God of the salvation of Your servants, merciful, compassionate and long-suffering; Who repents concerning our evil deeds, not desiring the death of a sinner, but that he should turn from his way and live. Show mercy now on Your servant [name] and grant to him (or her) an image of repentance, forgiveness of sins and deliverance, pardoning all his (or her) sins, whether voluntary or involuntary. Reconcile and unite him (or her) to Your Holy Church, through Jesus Christ our Lord, to Whom, with You, are due dominion and majesty, now and ever and unto ages of ages. Amen.

May our Lord and God, Jesus Christ, by the grace and compassion of His love for mankind, forgive you, my child, [name], all your transgressions. And I His unworthy Priest, through the power given me, forgive and absolve you from all your sins, in the Name of the Father, and of the Son, and of the Holy Spirit. Amen.

Following this prayer, the penitent rises, kisses the Cross and the Gospels and, receiving a blessing from the priest, steps away thanking God.