Glossolalia is a term that refers to the ability or practice of speaking in a language unknown to the speaker. Glossolalia is usually used to denote speaking in a language that doesn’t seem to exist or that isn’t known to humanity. Xenolalia is a form of glossolalia where one speaks a language that exists but is unknown to the speaker. Both are phenomenons that occurs while in a trance state of ecstasy and union with spirit(s).