The Sacrament of Penance and Reconciliation (commonly called Penance, Reconciliation, or Confession) is one of the seven sacraments of the Catholic Church (called sacred mysteries in the Eastern Catholic Churches), in which the faithful obtain absolution for the sins committed against God and neighbour and are reconciled with the community of the Church. By this sacrament Christians believe they are freed from sins committed after Baptism. The sacrament of Penance is considered the normal way to be absolved from mortal sin, by which one would otherwise possibly condemn oneself to Hell. Catholic theology regarding the forgiveness of sins debates whether Christ at the judgment of the individual after their death would allow those with unconfessed mortal sins a chance to repent and save themselves - especially those who had not made plans to confess, or were not mentally ill, coerced, or suicidal (which the Church has said all would reduces one 's culpability). While persons with certain unconfessed mortal sins that were under some form of censure still at their death might not be allowed a Catholic Funeral Mass and burial rites, and while Catholics with unconfessed mortal sins may not receive Communion (unless in some circumstances, ameliorating factors were present), these matters, though related, are not the same as whether an individual with unconfessed serious sins is condemned to Hell.
what does the sacrament of penance and reconciliation offer to those who participate
absolution for the sins committed against God and neighbour