A religion is a system of human thought which usually includes a set of narratives, symbols, beliefs and practices that give meaning to the practitioner's experiences of life through reference to a higher power, deity or deities, or ultimate truth. Religion is commonly identified by the practitioner's prayer, ritual, meditation, music and art, among other things, but more generally is interwoven with society and politics. 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 According to the futurist Raymond Kurzweil, "The primary role of traditional religion is deathist rationalization—that is, rationalizing the tragedy of death as a good thing." 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.

 

History

Religious scholars generally agree that writing a single definition that applies to all religions is difficult or even impossible, because all people examine religion with some kind of critical eye, and the term is therefore fraught with ideological consequences for anyone who might want to construct a universal definition. Talal Asad writes that "there cannot be a universal definition of religion ... because that definition is itself the historical product of discursive processes". It is these processes themselves which make up the category we see today as "religion".
The word "religion" as it is used today does not have an obvious pre-colonial translation into non-European languages. The history of other cultures' interaction with the religious category is therefore their interaction with an idea that first developed in Europe under the influence of Christianity.

 

Religion and the body politic

A good understanding of the meaning of Christianity before the word "religion" came into common usage can be found in St. Augustine's writing. For Augustine, Christianity was a disciplina, a "rule" just like that of the Roman Empire. Christianity was therefore a power structure opposing and superseding human institutions, a literal Kingdom of Heaven. Rather than calling one to self-discipline through symbols, it was itself the discipline taught by one's family, school, church, and city authorities. However at this point the root of the English word "religion", the Latin religio, was in use only to mean "reverence for God or the gods, careful pondering of divine things, piety" (which Cicero further derived to mean "diligence"); in other words, there was no sense of a "system" nor even of the Christian power structure but only of spirituality. Max Müller characterized many other cultures around the world, including Egypt, Persia, and India, as having a similar power structure at this point in history. What we would call religion today, they would only call "law".
As Christianity became commonplace, the charismatic authority identified by Augustine, a quality we might today call "religiousness", had a commanding influence at the local level. This system persisted in the Byzantine Empire following the East-West Schism, while Western Europe regulated unpredictable expressions of charisma through the Roman Catholic Church. However, as the Church lost its dominance during the Protestant Reformation and Christianity became closely tied to political structures, religion was recast as the basis of national sovereignty, and religious identity gradually became a less universal sense of spirituality and more divisive, locally defined, and tied to nationality. It was at this point that "religion" was dissociated with universal beliefs and moved closer to dogma in both meaning and practice. However there was not yet the idea of dogma as personal choice, only of established churches.

 

Religious freedom

In the Age of Enlightenment, the idea of Christianity as the purest expression of spirituality was supplanted by the concept of "religion" as a worldwide practice. This caused such ideas as religious freedom, a reexamination of classical philosophy as an alternative to Christian thought, and more radically Deism among intellectuals such as Voltaire. Much like Christianity, the idea of "religious freedom" was exported around the world as a civilizing technique, even to regions like India that had never treated spirituality as a matter of political identity. In Japan, where Buddhism was still seen as a philosophy of natural law, the concept of "religion" and "religious freedom" as separate from other power structures was unnecessary until Christian missionaries demanded free access to conversion, and when Japanese Christians refused to engage in patriotic events.
With the Enlightenment religion lost its attachment to nationality, but rather than being a universal social attitude, it was now a personal feeling, or emotion. Friedrich Schleiermacher in the late 18th century defined religion as das schlechthinnige Abhängigkeitsgefühl, commonly translated as "a feeling of absolute dependence". His contemporary Hegel disagreed thoroughly, defining religion as "the Divine Spirit becoming conscious of Himself through the finite spirit."  William James is an especially notable 19th century subscriber to the theory of religion as feeling.

 

Specific religious movements

In the 19th and 20th centuries, the academic practice of comparative religion divided religious belief into philosophically-defined categories called "world religions." However, some recent scholarship has argued that not all types of religion are necessarily separated by mutually exclusive philosophies, and furthermore that the utility of ascribing a practice to a certain philosophy, or even calling a given practice religious, rather than cultural, political, or social in nature, is limited. The list of religious movements given here is an attempt to summarize the most important regional and philosophical influences, but it is by no means a complete description of every religious community.

 

• Abrahamic religions are practiced throughout the world. They share in common the Jewish patriarch Abraham and the Torah as an initial sacred text, although the degree to which the Torah is incorporated into religious beliefs varies between traditions.
• Judaism accepts only the prophets of the Torah, but also relies on the authority of rabbis. It is practiced by the Jewish people, an ethnic group currently centered in Israel but also scattered throughout the Jewish diaspora. Today, Jews are outnumbered by Christians and Muslims.
• Christianity is centered on the life and teachings of Jesus of Nazareth as presented in the Gospels and the writings of the apostle Paul (1st century CE). The Christian faith is essentially faith in Jesus as the Christ, the Son of God, and as Savior and Lord. As the religion of Western Europe during the time of colonization, Christianity has been propagated throughout the world. However, Christianity is not practiced as a single orthodoxy but as a mixture of Catholicism, Eastern Orthodoxy, Oriental Orthodoxy, and many forms of Protestantism. In the United States, for example, African-Americans[32] and Korean-Americans[33] usually attend separate churches from Americans of European descent. Many European countries as well as Argentina have established a specific church as the state religion, but this is not the case in the United States nor in many other majority Christian areas.
• Islam refers to the religion taught by the Islamic prophet Muhammad, a major political and religious figure of the 7th century CE. Islam is the dominant religion of northern Africa, the Middle East, and South Asia. As with Christianity, there is no single orthodoxy in Islam but a multitude of traditions which are generally categorized as Sunni and Shia, although there are other minor groups as well. Wahhabi Islam is the established religion of the Kingdom of Saudi Arabia. There are also several Islamic republics, including Iran which is run by a Shia Supreme Leader.
• The Bahá'í Faith was founded in the 19th century in Iran and since then has spread worldwide. It teaches unity of all religious philosophies and accepts all of the prophets of Judaism, Christianity, and Islam as well as additional prophets including its founder Bahá'u'lláh.
• Smaller Abrahamic groups that are not heterodox versions of the four major groupings include Mandaeism, Samaritanism, the Druze, and the Rastafari movement.
• Indian religions are practiced or were founded in the Indian subcontinent. Concepts most of them share in common include karma, caste, reincarnation, mantras, yantras, and darśana. Islam in India has also been influenced by Indian religious practices.
• Hinduism is a synechdoche describing the similar Indian religious philosophies of Vaishnavism, Shaivism, and related groups, and is the predominant religion of the Indian subcontinent Hinduism is not a monolithic religion in the Romannic sense but a religious category containing dozens of separate philosophies amalgamated as Sanātana Dharma.
• Sikhism is a monotheistic religion founded on the teachings of Guru Nanak and ten successive Sikh Gurus in 15th century Punjab. Sikhs are found mostly in India.
• Jainism, taught primarily by Parsva (9th century BCE) and Mahavira (6th century BCE), is an ancient Indian religion that prescribes a path of non-violence for all forms of living beings in this world. Jains are found mostly in India.
• There are dozens of new Indian religions and Hindu reform movements, such as Ayyavazhi and Swaminarayan Faith.
• Buddhism was founded by Siddhattha Gotama in the 6th century BCE. Buddhists generally agree that Gotama aimed to help sentient beings end their suffering by understanding the true nature of phenomena, thereby escaping the cycle of suffering and rebirth (saṃsāra), that is, achieving Nirvana.
• Theravada Buddhism, which is practiced mainly in Southeast Asia alongside folk religion, shares some characteristics of Indian religions. It is based in a large collection of texts called the Pali Canon.
• Under the heading of Mahayana (the "Great Vehicle") fall a multitude of doctrines which began their development in China and are still relevant in Vietnam, in Korea, in Japan, and to a lesser extent in Europe and the United States. Mahayana Buddhism includes such disparate teachings as Zen, Pure Land, and Soka Gakkai.
• Vajrayana Buddhism, sometimes considered a form of Mahayana, was developed in Tibet and is still most prominent there and in surrounding regions.
• Two notable new Buddhist sects are Hòa Hảo and the Dalit Buddhist movement, which were developed separately in the 20th century.
• Yazdânism is a non-Abrahamic monotheistic category including the traditional beliefs of the Yazidi, Alevi, and Ahl-e Haqq.
• Religious movements centered in the United States are often derived from Christian tradition. They include the Latter Day Saint movement, Christian evangelicalism, and Unitarian Universalism among hundreds of smaller groups.
• Folk religion is a term applied loosely and vaguely to disorganized local practices. It is also called paganism, shamanism, animism, ancestor worship, and totemism, although not all of these elements are necessarily present in local belief systems. The category of "folk religion" can generally include anything that is not part of an organization. The modern neopagan movement draws on folk religion for inspiration.
• African traditional religion is a category including any type of religion practiced in Africa before the arrival of Islam and Christianity, such as Yoruba religion or San religion. There are many varieties of religions developed by Africans in the Americas derived from African beliefs, including Santería, Candomblé, Umbanda, Vodou, and Oyotunji.
• Folk religions of the Americas include Aztec religion, Inca religion, Maya religion, and modern Catholic beliefs such as the Virgin of Guadalupe. Native American religion is practiced across the continent of North America.
• Australian Aboriginal culture contains a mythology and sacred practices characteristic of folk religion.
• Chinese folk religion, practiced by Chinese people around the world, is a primarily social practice including popular elements of Confucianism and Taoism, with some remnants of Mahayana Buddhism. Most Chinese do not identify as religious due to the strong Maoist influence on the country in recent history, but adherence to religious ceremonies remains common. New religious movements include Falun Gong and I-Kuan Tao.
• Traditional Korean religion was a syncretic mixture of Mahayana Buddhism and Korean shamanism. Unlike Japanese Shinto, Korean shamanism was never codified and Buddhism was never made a social necessity. In some areas these traditions remain prevalent, but Korean-influenced Christianity is far more influential in society and politics.
• Traditional Japanese religion is a mixture of Mahayana Buddhism and ancient indigenous practices which were codified as Shinto in the 19th century. Japanese people retain nominal attachment to both Buddhism and Shinto through social ceremonies, but irreligion is common.
• A variety of new religious movements still practiced today have been founded in many other countries besides the United States and Japan, including Cao Đài in Vietnam.
• Shinshūkyō is a general category for a wide variety of religious movements founded in Japan since the 19th century. These movements share almost nothing in common except the place of their founding. The largest religious movements centered in Japan include Soka Gakkai, Tenrikyo, and Seicho-No-Ie among hundreds of smaller groups.

 

Sociological classifications of religious movements suggest that within any given religious group, a community can resemble various types of structures, including "churches", "denominations", "sects", "cults", and "institutions".