The institution of dispensation has evolved since the beginnings of the Church. It took various shapes, but its purpose has always been to slacken the law in a given case. The Church changed or mitigated the law depending on circumstances. Such slackening of ecclesiastical regulations occurred in order to make valid and decent what previously was illegal. In time, dispensation was granted prior to an act, permitteng acts previously forbidden by virtue of Church regulations. Each law is made to promote common good. However, each community consists of individuals who may find a given law too oppressive under certain circumstances and causing harm or hampering the attainment of greater common good. Dispensation is intended to relieve such si...