In some pentecostal and charismatic christian religions adherents experience an ecstatic religious happening (often associated with shamanism), which is known as

   Speaking in tongues

Explanation:  Ecstatic religious experiences in some religious communities are associated with transcendental states in which members of such religions receive spiritual experience. During a trance inspired by a spirit or spirits, they can speak different languages even though they had never learned those languages before and knew nothing about them. The explanation is that during religious trans experiences, some spirit-taught members began to speak languages. There is an example of this in the Bible, when, after the ascension of Christ to heaven, or more precisely in the fiftieth day after Christ's resurrection, the Holy Spirit descended on the apostles, and they began to speak different languages in order to preach Christ's teaching to different nations.

answer; ewing's sarcoma;