https://www.ramdass.org/ram-dass-gives-maharaji-the-yogi-medicine/ Story about when Ram Dass gave Maharaji a bunch of LSD and apparently didn´t affect him.  I find shocking to think this kind of stories are true. A realized Yogui is supposed to be able to "master" their own "inner chemistry", but to the point of blocking a bunch of LSD? Seems superpower-like.  But maybe is possible? Seems legit how Ram Dass tells the story in this clip: