Glossolalia

Glossolalia (often called speaking in tongues) (from Greek γλωσσολαλιά and that from γλῶσσα - glossa "tongue, language" and λαλεῖν (lalein) "to talk") is making noises that sound like language but are not a known language. It is often as part of religious practice. Some people believe the sounds are not language and do not mean anything, but some people think it is a special holy language.