189 Part of this spirit of reparation is the custom of asking forgiveness from our brothers and sisters, which demonstrates great nobility amid our human weakness. Asking forgiveness is a means of healing relationships, for it “re-opens dialogue and manifests the will to re-establish the bond of fraternal charity… It touches the heart of our brother or sister, brings consolation and inspires acceptance of the forgiveness requested. Even if the irreparable cannot be completely repaired, love can always be reborn, making the hurt bearable”.
Source: Dilexit Nos (Vatican.va)