Today I was at Mass in a bilingual parish, and after the pastor was having a conversation with someone in Spanish. To me, it sounded like total babbling and gibberish. DUH, of course tongues sounds like gibberish if you don’t know the language. I’m sorry I can’t present much more evidence beyond anecdotal evidence…I can name a whole lot of instances that have been related to me where actual languages have been clearly indentified by someone who actually knows the language. I have many suspicions about the languages I have spoken in, but not knowing anything beyond English and basic Latin, I can’t verify that they’re actual languages. I can tell you that I don’t control what words I speak. I can control when I start and stop, but not what syllables come out of my mouth. It sure sounds like a language anyway.
But I know of one instance when a guy was praying in French, another in Italian, also in an ancient Gothic French I think… You can listen to this onehttp://ctkcc.libsyn.com/charisms-part-1-dave-mangan-jan-21-2011, or this one
ctkcc.libsyn.com/charisms-part-2-dave-mangan-feb-4-2011 (I forget which one it is) in which the guy relates stories from his own experience. There was a time at that parish when a visiting priest from Uganda was saying Mass. At that parish, which is a charismatic parish, they have permission to pray in tongues at certain parts of the Mass (usually after the Gloria). This priest was skeptical of the whole thing, but the acolyte behind him suddenly began speaking in his own native Ugandan language from whatever village he came from. I know of a story of a man whose native language I think was Syriac, and he was writing some thesis on the Blessed Mother. He had some theological problem that he couldn’t work out. Meanwhile, he attended a charismatic prayer meeting or event of some kind (he was also skeptical of speaking in tongues). At this event, when there was a time for praying in tongues, the woman in front of him began praying in Syriac and explaining the problem to him. I know a priest who knows several languages and who also has a gift of discernment and listened to some boys praying in tongues to verify they had really received the gift. One of the boys began speaking in Hebrew, which the priest happens to know. This isn’t mere rumor, because I’ve met this priest. This priest also at one time was praying in Italian for sure. I really could go on all day. But I’m sorry these are all anecdotal.
nytimes.com/2006/11/07/health/07brain.html?_r=2&oref=slogin You might find this informative as well. And very cool.
In any case, we don’t need to have every single instance of tongues verified as an actual language. 1. that’s not the point and 2. the Church has already verified for us that this is a genuine gift of the Holy Spirit, so by faith we can just accept that it is some real language (even if no-one else on the planet still knows it, or perhaps some sort of angelic language). But it is not senseless babbling. If you disagree, then I’m sorry but you disagree with Church teaching (particularly the Sacred Scripture).
Excuse me, but Paul does not stress the relative uselessness of it. Please read Corinthians 14. He says it is GOOD. He says he who prays in a tongue EDIFIES himself - or more accurately builds up the temple of God within him (edify, and edifice, have the same root word aedificare from Latin - to build up). He says he wants all to pray in tongues. He encourages tongues. He says pray in the Spirit every chance you get. He says don’t forbid it. But he also says - it’s not as important as some of these other charismatic gifts. Because this gift really only helps the individual (unless there is an interpretation). Prophecy therefore is a lot more important, because it’s of more service to more people.
The claim that demonics speak in tongues, or that it could be demonic, really has no bearing here. As G.K. Chesterton says, this no more disproves the reality than a counterfeit note disproves the bank of England.
I don’t see how exactly a person can have their spiritual life revolve around it… But I don’t see a problem with it playing a very big part. It is, after all, the praise and adoration of God in the Holy Spirit. Which is kind of what we’re going to be doing for all eternity. So.
I find it kind of ironic that critics of the charismatic movement, especially criticizing its emphasis on “feelings” and “emotionalism”, often base their critique on their own feelings about the movement. They had a bad feeling about it.

We walk by faith, and not by feelings. Do watch the Church says. In any case, I don’t see anything wrong with getting hyped up about God. We don’t criticize people for getting emotionally excited and hyped up about a football game… and this is a lot bigger, and infinite times more amazing, than a football game.

Really, now, guys. You’re complaining that people are emotionally excited about their faith? But hey, I’m sure they thought the Apostles were pretty wacko coming out of the Upper Room. They did suspect, you know, that they were drunk (and in fact, they were, they had “drunk of the sober intoxication of the Spirit” to borrow a quote from St. Ambrose). I guess that’s a good sign!
Anyway, there needs to be a lot more proper catechesis about the charismatic gifts. Especially since, as John Paul II noted on Pentecost 1998, we had pretty much kind of forgotten about them for a long time. And the Vatican Council (particularly in section 12 of Lumen Gentium) brought it back to our attention, and put the emphasis on them once more. And boy, what do you know, just a few short years after the council - the Charismatic Renewal takes off like an explosion and spreads all over the world, becoming the fastest growing movement in the history of Christendom. Imagine that.