The problem of succession divides Islam generally into two schools of opinion. According to one view, represented chiefly by the Shi'ihs, the regency is a spiritual matter determined by the Prophet and by those who so succeed Him. According to the other view, that of the Sunnites, the succession goes by popular choice. The Caliphs of the Sunnites is the outward and visible Defender of the Faith. The Shi'ih Imam is divinely ordained and gifted with more than human wisdom and authority.