The prayer language you are referring to can not be written down or conveyed in any way to anyone else. It is strictly a meditative state that you believe helps you in communicating with GOD the FATHER. Is this what it is?
If so, I understand the Baptist distrust of it. It sounds very similar to what Buddhist's do when doing yoga.
I'm not bothered much by folks who wish to throw rocks at what Holy Spirit does in and through me.
Holy Spirit has done unusual things thoughout the Old Testament as well as the New. The unusual is NORMAL for Holy Spirit.
Certainly there is some research to suggest that praying in tongues is a kind of meditative state for many who exercise such. Meditating on God and what He is and/or might be doing in one's life is a pretty Biblical thing to do.
Many noncharismatic/nonPentecostal churches put their parishioners into a hypnotized meditative state by the cadence of their preaching . . . the sameness of the form of service etc. I don't find that very edifying or Biblical.
But, praying in tongues is usually, for me, not a meditative state at all. It's virtually like praying in English except that . . . as St Paul says in Scripture--one is praying with my conscious understanding and one is merely with varying degrees of understanding of one's spirit and . . . to some degree . . . what Holy Spirit shares with one consciouisly in English what is being prayed in tongues. But many folks are not taught to tune in "in their spirit" as they pray in tongues.
Then there's praying in tongues--most commonly--I think of a need in English and pray for a spell in tongues until I feel a peace that that specific need has been covered. Then, I move on to the next concern and think about that in English maybe while I pray in tongues about it until I feel a release.
Much of praying in tongues is listening, tuning in--in my spirit to Holy Spirit for whatever He might say about the topic of concern.
It's not surprising that Scripture says to Meditate on His Word day and night and that the enemy also has a counterfeit meditation on unhelpful things.
Equating a mental state while praying in tongues with a satanic meditation substitute is greatly inaccurate and borderline hazardous or worse in terms of Scripture.
Some believe that ascribing to Holy Spirit things of satan is equal to the unpardonable sin.