A religion is an organized approach to human spirituality which usually encompasses a set of narratives, symbols, beliefs and practices, often with a supernatural or transcendent quality, that give meaning to the practitioner's experiences of life through reference to a higher power or truth. It may be expressed through prayer, ritual, meditation, music and art, among other things. It may focus on specific supernatural, metaphysical, and moral claims about reality (the cosmos and human nature) which may yield a set of religious laws, ethics, and a particular lifestyle. Religion also encompasses ancestral or cultural traditions, writings, history, and mythology, as well as personal faith and religious experience.

The term "religion" refers to both the personal practices related to communal faith and to group rituals and communication stemming from shared conviction. "Religion" is sometimes used interchangeably with "faith" or "belief system," but it is more socially defined than personal convictions, and it entails specific behaviors, respectively.

The development of religion has taken many forms in various cultures. It considers psychological and social roots, along with origins and historical development.

In the frame of western religious thought, religions present a common quality, the "hallmark of patriarchal religious thought": the division of the world in two comprehensive domains, one sacred, the other profane. Religion is often described as a communal system for the coherence of belief focusing on a system of thought, unseen being, person, or object, that is considered to be supernatural, sacred, divine, or of the highest truth. Moral codes, practices, values, institutions, tradition, rituals, and scriptures are often traditionally associated with the core belief, and these may have some overlap with concepts in secular philosophy. Religion is also often described as a "way of life" or a life stance.

Etymology

The English word religion has been in use since the 13th century, loaned from Anglo-French religiun (11th century), ultimately from the Latin religio, "reverence for God or the gods, careful pondering of divine things, piety, the res divinae".

The ultimate origins of Latin religio are obscure. It is usually accepted to derive from lang: ligare "bind, connect"; probably from a prefixed lang: re-ligare, i.e. re (again) + ligare or "to reconnect." This interpretation is favoured by modern scholars such as Tom Harpur and Joseph Campbell, but was made prominent by St. Augustine, following the interpretation of Lactantius. Another possibility is derivation from a reduplicated lang: *le-ligare. A historical interpretation due to Cicero on the other hand connects lang: lego "read", i.e. re (again) + lego in the sense of "choose", "go over again" or "consider carefully". It may also be from Latin religiō, religiōn-, perhaps from religāre, to tie fast.