I believe, clearly, that exotic means, as practiced by shamans, are the exponents of verification that informs us the same way that the searcher uses to pronounce the edification of the conscious experience of Being. How else do you propose to test Mind? With machines? Maybe. But personal and subjective means allow us to perceive much, if not yet all, considerations of Mind and Being. I can only suggest the means, not the actual results of such scrutiny. Subjective means "personal", and truly does go a long way into the "rabbit hole".
Remember: Ask, Seek, Knock. These are the prerequisites to knowing what we are, as Mind.
Which neither space nor time touches.