Speaking in tongues

speaking in tongues is when the lord talks to you and gives you the ability to talk back to Him and others but in His language. At my church back home there is a woman who speaks in tongues and another woman can relay to the congrgation what she is saying and give us Gods message. I remember once when I was younger our pastor came over and we were praying and my mom started to talk in tongues, I was really confused until the pastor explained