Maybe it is something infantile, like how babies babble.

Some people with certain religious histories, particularly if associated with trauma may have these as sometimes there is chanting.

It reads like stuff I hear on yoga... Which to me just sounds like whatever and I'll hum.

Not sure what it may be about. Maybe you feel like T doesn't understand you or you have something to say that you don't know how.

You could always go super natural and interpret it as tongues or religious text or ancient past life words, or some sort of spell. That could be fun to roll with, too.

Dreams are weird. My T or myself will do things that are situational gibberish... Like I once had a session in my house filled with water and this floating pedestal and my Ts there one was too tall and there were animals and yea just gibberish.