A religion is an organized collection of beliefs, cultural systems, and world views that relate humanity to an order of existence. Most religions have narratives, symbols, and sacred histories that aim to explain the meaning of life, the origin of life, or the Universe. People may derive morality, ethics, religious laws or a preferred lifestyle from their beliefs about the cosmos and human nature. Many religions have organized behaviors, clergy, a de nition of what constitutes adherence or membership holy places, and scriptures. The practice of a religion may include rituals, sermons, commemoration or veneration of a deity, gods, or goddesses, sacri ces, festivals, feasts, trances, initiations, funerary services, matrimonial services, meditation prayer, music, art, dance, public service, or other aspects of human culture. Religions usually incorporate mythology in their dogma. The word religion is sometimes used interchangeably with faith. However, many experts consider that religion differs from private belief in that religion has a component that is eminently social."