What is confession?
Also known as the Sacrament of Penance, it is the sacrament by which a baptized person is restored to the life of grace after they have committed sin. It requires a validly ordained priest with faculties (except in some exceptional circumstances) and a penitent who has sorrow for their sins and states all their grave sins of which they are aware. The priest then gives a penance (which is usually some prayers) to be done after the confession. The penitent then makes the act of contrition and the priest absolves the penitent of their sin.