glossolalia, (from Greek glōssa, “tongue,” and laleō, “talking”): utterances approximating words and speech, usually produced during states of intense religious experience. The vocal organs of the speaker are affected; the tongue moves, in many cases without the conscious control of the speaker; and generally unintelligible speech pours forth. Speakers and witnesses may interpret the phenomenon as possession by a supernatural entity, conversation with divine beings, or the channeling of a divine proclamation or inspiration. Various psychological interpretations have attempted to explain glossolalia scientifically as an unconsciously suggested behaviour arising from participation in a mass religious gathering.

SPEAKING IN TONGUES