This document discusses religious institutions. It begins by defining religion according to Durkheim as a unified system of beliefs and practices related to sacred things. It also provides definitions from James G. Frazer and Horton & Hunt. It then lists major religious institutions like mosques, madrasas, and religious schools. The document outlines elements of religious institutions like rituals, beliefs, and symbols. It describes functions such as removing fear and anxiety and presenting values. Finally, it discusses relationships between religious institutions and other social institutions like family, education, politics, and economy.