Animism (from Latin anima, "breath, spirit, life") is the religious belief that objects, places and creatures all possess a distinct spiritual essence. Potentially, animism perceives all things—animals, plants, rocks, rivers, weather systems, human handiwork and perhaps even words—as animated and alive. Animism is used in the anthropology of religion as a term for the belief system of many indigenous peoples, especially in contrast to the relatively more recent development of organised religions.

Although each culture has its own different mythologies and rituals, "animism" is said to describe the most common, foundational thread of indigenous peoples' "spiritual" or "supernatural" perspectives. The animistic perspective is so widely held and inherent to most indigenous peoples that they often do not even have a word in their languages that corresponds to "animism" (or even "religion"); the term is an anthropological construct.

Largely due to such ethnolinguistic and cultural discrepancies, opinion has differed on whether animism refers to an ancestral mode of experience common to indigenous peoples around the world, or to a full-fledged religion in its own right. The currently accepted definition of animism was only developed in the late 19th century (1871) by Sir Edward Tylor, who created it as "one of anthropology's earliest concepts, if not the first".

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