i've done a lot of psychedelics and amphetamines over the years. meth, in particular, has had some rather strange effects i've observed involving memories, for years every time i dosed i'd get flashes of dream recall of this one dream over and over again that recurred a lot in my childhood and even again later.
in the dream there is a scene a bit like the final scenes of The Labyrinth where i'm walking through this "dump" sort of place, full of these rusty old metal skulls and i'm like sure that under my feet somewhere i'm going to step on a trigger plate and have them close on me.
then there is another scene where i am floating on some kind of boat, at first it's like a ship, but it's adrift in a canal surrounded by mangroves. then it becomes a raft, and i'm looking around at the water, sure there is crocodiles in there who might attack me.
this dream sequence almost consistently popped into my mind in the first hour or two almost every time i dosed for most of my mid 20s.
the theme, if you don't quite get it, relates to the hidden triggers that people have that cause them to judge you unfairly, and a sense of being alone in this awareness of the dangers in the waters (emotions) of myself and people.