From Pope St. John Paul II’s Apostolic Exhortation Reconciliatio et Pænitentia (1984):
Nevertheless, that same inquiring gaze, if it is discerning enough, detects in the very midst of division an unmistakable desire among people of good will and true Christians to mend the divisions, to heal the wounds and to re-establish at all levels an essential unity. This desire arouses in many people a real longing for reconciliation even in cases where there is no actual use of this word.
Some consider reconciliation as an impossible dream which ideally might become the lever for a true transformation of society. For others it is to be gained by arduous efforts and therefore a goal to be reached through serious reflection and action. Whatever the case, the longing for sincere and consistent reconciliation is without a shadow of doubt a fundamental driving force in our society, reflecting an irrepressible desire for peace. And it is as strongly so as the factors of division, even though this is a paradox.
But reconciliation cannot be less profound than the division itself. The longing for reconciliation and reconciliation itself will be complete and effective only to the extent that they reach—in order to heal it—that original wound which is the root of all other wounds: namely sin.
— Reconciliatio et Pænitentia 3