Yeah, I've looked into certain forms of sonic healing but that wasn't what the focus of this episode was.
In this case, the theta neural oscillations can be connected to decades of research from a US state university's medical school's division of perceptual studies. It can also be connected to decades of research by an independent researcher who many would consider to be "New Age", however, the science backs it up.
I also appeal to modern scientific studies that have noticed how certain practices can stimulate theta neural oscillation dominant mental states in people and that that can lead to mysterious altered states of consciousness that the researchers themselves did not understand.
I believe I do...and more.