This would possibly be a bit of a detour, but one subject to explore from this framework is how surprisingly common it is for meditation masters, who seem to have attained PNSE, to become alcoholics and indulge in inappropriate sexual relations.
It could be related to PNSE itself, or just other indirect factors like the status associated with the role of a guru.
Almost every interview Sam Harris has with meditation experts (in the Waking Up app) includes a section discussing this issue, but the discussions always seem low confidence/kind of speculative.
Feelings of ecstasy and jhanas would also be interesting topics to explore.
Man, my eyes got watery.