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Communitas perfecta ("perfect community") or societas perfecta ("perfect society") is the Latin name given to one of several ecclesiological, canonical, and political theories of the Catholic Church. The doctrine teaches that the church is a self-sufficient or independent group which already has all the necessary resources and conditions to achieve its overall goal (final end) of the universal salvation of mankind. It has historically been used in order to define church–state relations and to provide a theoretical basis for the legislative powers of the church in the philosophy of Catholic canon law.