ok, what about the other way round? what about questioning them while taking them?
i know that you can get some insights, because i took psychedelics in my youth and had near death experience. but nothingness experience you can have without it. even infinity is something you can experience without them (maybe only by taking them in advance) but at some point isn't it better to stop? a lot of my friends had a really rough time, because they couldn't stop or they got lost on the way. i stopped taking drugs when i turned 18. and still am happy i did. though i never forget what i was able to see.
all i want to say is: the craving mind can be delusional, too.