““efficacy of perfect contrition be reconciled with the dogma that the power of the keys is necessary for the forgiveness of sins? Why have recourse to the Church if mortal sin can be forgiven by perfect contrition? The answer is: As Baptism of desire (baptismus flammis) justifies only when it includes a desire to receive the Sacrament (votum baptismi), 13 so perfect contrition effects justification only when accompanied by a desire to receive the Sacrament of Penance (votum sacramenti poenitentiae)””