Glossolalia, also known as speaking in tongues, is a phenomenon in which a person utters apparently unintelligible speech that is claimed to be a language unknown to the speaker.
Glossolalia is often associated with religious practices, particularly in Pentecostal and charismatic Christian traditions, and is considered to be a spiritual gift.
The sounds and syllables produced in glossolalia are not based on any known language, but are thought to be a form of communication between the speaker and God.