What Are Biblical Tongues?

Description

What is speaking in tongues? If you ask this question in a group of Christians, you will get a variety of answers ranging from the speaking of an angelic language, the sign of the baptism of the Holy Spirit, a personal prayer language between you and God, to speaking an actual language of man. Some may even say that you must speak in these tongues in a miraculous way in order to be saved and have eternal life.