Sociological, psychological, and anthropological theories about religion generally attempt to explain the origin and function of religion. These theories define what they present as universal characteristics of religious belief and practice.
History From presocratic times, ancient authors advanced prescientific theories about religion.Segal 2005, p. 49 Herodotus (484–425 BCE) saw the gods of Greece as the same as the gods of Egypt. Euhemerus (about 330–264 BCE) regarded gods as excellent historical persons whom admirers eventually came to worship.
Scientific theories, inferred and tested by the comparative method, emerged after data from tribes and peoples all over the world became available in the 18th and 19th centuries. Max Müller (1823–1900) has the reputation of having founded the scientific study of religion; he advocated a comparative method that developed into comparative religion.
Subsequently, Clifford Geertz (1926–2006) and others questioned the validity of abstracting a general theory of all religions.
Classification Theories of religion can be classified into: Substantive (or essentialist) theories that focus on the contents of religions and the meaning the contents have for people. This approach asserts that people have faith because beliefs make sense insofar as they hold value and are comprehensible. The theories by Tylor and Frazer (focusing on the explanatory value of religion for its adherents), by Rudolf Otto (focusing on the importance of religious experience, more specifically experiences that are both fascinating and terrifying) and by Mircea Eliade (focusing on the longing for otherworldly perfection, the quest for meaning, and the search for patterns in mythology in various religions) offer examples of substantive theories. Functional theories that focus on the social or psychological functions that religion has for a group or a person. In simple terms, the functional approach sees religion as "performing certain functions for society" Theories by Karl Marx (role of religion in capitalist and pre-capitalist societies), Sigmund Freud (psychological origin of religious beliefs), Émile Durkheim (social function of religions), and the theory by Stark and Bainbridge exemplify functional theories. This approach tends to be static, with the exception of Marx' theory, and unlike e.g. Weber's approach, which treats of the interaction and dynamic processes between religions and the rest of societies. Social relational theories of religion that focus on the nature or social form of the beliefs and practices. Here, Charles Taylor's book The Secular Age is exemplary,Charles Taylor, A Secular Age, Cambridge, Harvard University Press, 2007, as is the work of Clifford Geertz. The approach is expressed in Paul James's argument that religion is a "relatively bounded system of beliefs, symbols and practices that addresses the nature of existence through communion with others and Otherness, lived as both taking in and spiritually transcending socially grounded ontologies of time, space, embodiment and knowing". This avoids the dichotomy between the immanent and transcendental.
Other dichotomies according to which theories or descriptions of religions can be classified include:
"insider" versus "outsider" perspectives (roughly corresponding to emic versus etic descriptions) individualist versus social views evolutionist versus relativist views
Methodologies Early essentialists, such as Tylor and Frazer, looked for similar beliefs and practices in all societies, especially the more primitive ones, more or less regardless of time and place. They relied heavily on reports made by missionaries, discoverers, and colonial civil servants. These were all investigators who had a religious background themselves, thus they looked at religion from the inside. Typically they did not practice investigative field work, but used the accidental reports of others. This method left them open to criticism for lack of universality, which many freely admitted. The theories could be updated, however, by considering new reports, which Robert Ranulph Marett (1866–1943) did for Tylor's theory of the evolution of religion.
Field workers deliberately sent out by universities and other institutions to collect specific cultural data made available a much greater database than random reports. For example, the anthropologist E. E. Evans-Pritchard (1902–1973) preferred detailed ethnographical study of tribal religion as more reliable. He criticised the work of his predecessors, Müller, Tylor, and Durkheim, as untestable speculation. He called them "armchair anthropologists".
A second methodology, functionalism, seeks explanations of religion that are outside of religion; i.e., the theorists are generally (but not necessarily) atheists or agnostics themselves. As did the essentialists, the functionalists proceeded from reports to investigative studies. Their fundamental assumptions, however, are quite different; notably, they apply methodological naturalism. When explaining religion they reject divine or supernatural explanations for the status or origins of religions because they are not scientifically testable. In fact, theorists such as Marett (an Anglican) excluded scientific results altogether, defining religion as the domain of the unpredictable and unexplainable; that is, comparative religion is the rational (and scientific) study of the irrational. The dichotomy between the two classifications is not bridgeable, even though they have the same methods, because each excludes the data of the other.
The functionalists and some of the later essentialists (among others E. E. Evans-Pritchard) have criticized the substantive view as neglecting social aspects of religion. Such critics go so far as to brand Tylor's and Frazer's views on the origin of religion as unverifiable speculation. The view of monotheism as more evolved than polytheism represents a mere preconception, they assert. There is evidence that monotheism is more prevalent in hunter societies than in agricultural societies. The view of a uniform progression in folkways is criticized as unverifiable, as the writer Andrew Lang (1844–1912) and E. E. Evans-Pritchard assert. The latter criticism presumes that the evolutionary views of the early cultural anthropologists envisaged a uniform cultural evolution. Another criticism supposes that Tylor and Frazer were individualists (unscientific). However, some support that supposed approach as worthwhile, among others the anthropologist Robin Horton. The dichotomy between the two fundamental presumptions - and the question of what data can be considered valid - continues.
Substantive theories
Evolutionary theories
Evolutionary theories view religion as either an adaptation or a byproduct. Adaptationist theories view religion as being of adaptive value to the survival of Pleistocene humans. Byproduct theories view religion as a spandrel.
Edward Burnett Tylor
The anthropologist Edward Burnett Tylor (1832–1917) defined religion as belief in spiritual beings and stated that this belief originated as explanations of natural phenomena. Belief in spirits grew out of attempts to explain life and death. Primitive people used human dreams in which spirits seemed to appear as an indication that the human mind could exist independent of a body. They used this by extension to explain life and death, and belief in the after life. Myths and deities to explain natural phenomena originated by analogy and an extension of these explanations. His theory assumed that the psyches of all peoples of all times are more or less the same and that explanations in cultures and religions tend to grow more sophisticated via monotheist religions, such as Christianity and eventually to science. Tylor saw practices and beliefs in modern societies that were similar to those of primitive societies as survivals, but he did not explain why they survived.
James George Frazer James George Frazer (1854–1941) followed Tylor's theories to a great extent in his book The Golden Bough, but he distinguished between magic and religion. Magic is used to influence the natural world in the primitive man's struggle for survival. He asserted that magic relied on an uncritical belief of primitive people in contact and imitation. For example, precipitation may be invoked by the primitive man by sprinkling water on the ground. He asserted that according to them magic worked through laws. In contrast religion is faith that the natural world is ruled by one or more deities with personal characteristics with whom can be pleaded, not by laws.
Rudolf Otto
The theologian Rudolf Otto (1869–1937) focused on religious experience, more specifically moments that he called numinous which means "Wholly Other". He described it as mysterium tremendum (terrifying mystery) and mysterium fascinans (awe inspiring, fascinating mystery). He saw religion as emerging from these experiences.
He asserted that these experiences arise from a special, non-rational faculty of the human mind, largely unrelated to other faculties, so religion cannot be reduced to culture or society. Some of his views, among others that the experience of the numinous was caused by a transcendental reality, are untestable and hence unscientific.
His ideas strongly influenced phenomenologists and Mircea Eliade.
Mircea Eliade
Mircea Eliade's (1907–1986) approach grew out of the phenomenology of religion. Like Otto, he saw religion as something special and autonomous, that cannot be reduced to the social, economical or psychological alone. Like Durkheim, he saw the sacred as central to religion, but differing from Durkheim, he views the sacred as often dealing with the supernatural, not with the clan or society. The daily life of an ordinary person is connected to the sacred by the appearance of the sacred, called hierophany. Theophany (an appearance of a god) is a special case of it. In The Myth of the Eternal Return Eliade wrote that archaic men wish to participate in the sacred, and that they long to return to lost paradise outside the historic time to escape meaninglessness. The primitive man could not endure that his struggle to survive had no meaning. According to Eliade, man had a nostalgia (longing) for an otherworldly perfection. Archaic man wishes to escape the terror of time and saw time as cyclic. Historical religions like Christianity and Judaism revolted against this older concept of cyclic time. They provided meaning and contact with the sacred in history through the god of Israel.
Eliade sought and found patterns in myth in various cultures, e.g. sky gods such as Zeus.
Eliade's methodology was studying comparative religion of various cultures and societies more or less regardless of other aspects of these societies, often relying on second hand reports. He also used some personal knowledge of other societies and cultures for his theories, among others his knowledge of Hindu folk religion.
He has been criticized for vagueness in defining his key concepts. Like Frazer and Tylor he has also been accused of out-of-context comparisons of religious beliefs of very different societies and cultures. He has also been accused of having a pro-religious bias (Christian and Hindu), though this bias does not seem essential for his theory.
E. E. Evans-Pritchard
The anthropologist Edward Evan Evans-Pritchard (1902–1973) did extensive ethnographic studies among the Azande and Nuer peoples who were considered "primitive" by society and earlier scholars. Evans-Pritchard saw these people as different, but not primitive.
Unlike the previous scholars, Evans-Pritchard did not propose a grand universal theory and he did extensive long-term fieldwork among "primitive" peoples, studying their culture and religion, among other among the Azande. Not just passing contact, like Eliade.