Church and state were inseparably linked in Spanish policy, with the state assuming responsibility for religious establishments. One of Spain's objectives in colonialization of the Philippines was the conversion of the local population to Roman Catholicism. The work of conversion was facilitated by the disunity and insignificance of other organized religions, except for Islam, which was still predominant in the southwest. The pageantry of the church had a wide appeal, reinforced by the incorporation of indigenous social customs into religious observances. The eventual outcome was a new Roman Catholic majority, from which the Muslims of western Mindanao and the upland tribal and animistic peoples of Luzon remained detached and alienated from (Ethnic groups such as the Ifugaos of the Cordillera region and the Mangyans of Mindoro).