Chapter 19 — Part II: The Sacraments — Penance
Section 86. Advantages Of Confession — To appreciate further the great advantages of confession we may turn to a fact taught by experience. To those who have led immoral lives nothing is found so useful towards a reformation of morals as sometimes to disclose their secret thoughts, all their words and actions, to a prudent and faithful friend, who can assist them by his advice and cooperation. For the same reason it must prove most salutary to those whose minds are agitated by the consciousness of guilt to make known the diseases and wounds of their souls to the priest, as the vicegerent of Christ our Lord, bound to eternal secrecy by the strictest of laws. (In the Sacrament of Penance) they will find immediate remedies, the healing qualities of which will not only remove the present malady, but will also have such a heavenly efficacy in preparing the soul against an easy relapse into the same kind of disease and infirmity.