Paul spoke with the tongues of men and angels as we found out in 1 Corinthians 13 but regarded love as the greatest of all fruits...”1If I speak in the tongues of men and of angels, but have not love, I am only a ringing gong or a clanging cymbal. 2If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have absolute faith so as to move mountains, but have not love, I am nothing.…”
The entire chapter of Corinthians 14 lays down as to how tongues should be used in church and in privates meditation.
.
Tongues are for the giving of the word of God, not for personal agrandisement.
If the word is not being given, then it is demonic or theater.
.
You mean, like having a mantra? Maybe Paul was referring to indulging in a taste of Hinduism?