Its the same nonsensical belief of "we only use 10% of our brain."

They truly believed we needed to unlock the full potential of our mind, whether it being literally locked or locked by "society and the man" impressing upon it, and you needed a drug powerful enough to trigger it out.

Its one of those logics that makes sense if you accept the premise and all the foundational parts, but only a fucking retard would accept those to begin with.