I used to speak in tongues and I had convinced myself that I was speaking in tongues by the power of the Spirit. But in reality it was all a bunch of nonsense. The "tongues" seen in todays churches are very much similar to the story of the emperors cloths. Because only the wise could see the clothes, nobody wanted to say that they could not see them. It took a simple child to point it all out. In the same way "only the spiritual" speak in tongues and it takes a simple childlike faith to point out that it's all complete nonsense.