There is a study linking increased profundity to shrooms as well but I can't find anything on it. Also, my partner seems to get none of the increased profundity on any drug but functions just fine with her sober profundity. But she has virtually no spiritual side, so this makes me question whether the mechanism that she's missing for profundity is some survival/coping mechanism that is a remnant of our genetic past that is no longer necessary and now just weighs us down with irrational thoughts. There is someone out there that has coined the term "the god Gene" and I think this may apply to the spiritual sort of profundity.