The Future of an Illusion (Die Zukunft einer Illusion)

The Future of an Illusion, Sigmund Freud's own 1927 work published in German by the Internationaler Psychoanalytischer Verlag, argues that religious belief functions as a collective illusion serving a psychological need, a wish for protection against a hostile and indifferent natural world modeled on the child's relationship to a protective father. Its strength is that it is Freud's own clearest, most direct statement of his view of religion as illusion rather than delusion, meaning a belief shaped by wish rather than necessarily false, a distinction that shaped a whole later secular tradition of explaining religion psychologically. Its limit is that it is argument rather than empirical study, resting on Freud's own clinical theory of infantile psychology extended by analogy to whole civilizations, a move many historians of religion and even later psychoanalysts have found unsupported by evidence, so a claim about why people actually hold religious belief, rather than what Freud theorized about it, needs sources beyond Freud's own argument.