They're Suffering From Mad Hatter Syndrome
*This will be long, sorry*
I was thinking a lot about Alice's Adventures in Wonderland today (which happens to be my favorite book) and a lot of imagery has come to mind based on the book/movies.
Mad Hatter Syndrome, also known as erethism, is caused by chronic exposure to mercury (popular amongst hatters in the 18th and 19th century). Prolonged mercury exposure can cause memory loss, irritability, depression, hallucinations, etc... This goes along with the mining theory that there's mercury all throughout the woods so I won't get too much into that because we already know about that theory. Anyway, the memory loss aspect could play into the Yellowjackets remembering things different than they were (which also plays with Mari's two realities thing). Depression, obvious. Irritability, obvious. Hallucinations, obvious. I think this also explains Van's lantern wigging out and the fact the cabin burned up a lot longer.
Rabbits. There are rabbits everywhere, much like the white rabbit.
Queen of hearts (obvious)
Laura Lee looks just like Alice from the Disney movie in Lottie's hallucination in Season 2. The blonde hair, black headband, blue and white. Come on.
The "screams" in the trees sound like the Jabberwocky.
This past episode could be considered "nonsense" (not in a derogatory way, I thought Episode 3 was BRILLIANT). But Lewis Carroll writes in nonsense that has messages hidden under the satire (here, we see this with Akilah's hallucination).
"The land of make believe" is literally "Wonderland." Also, Wonderland is never what it seems, as per the Cheshire Cat which goes with the whole "the scream aren't what you think" and the theme that what we are seeing isn't what actually is going on.
The caterpillar being philisophical with its hookah=lottie and travis and all their mushroom excursions. Also the caterpillar tells her to eat part of its mushroom.
I'm thinking of how Wonderland presents itself as this really cool place (kinda how the Yellowjackets have created their commune). On the surface it's great, but below its dark (the queen of hearts literally wants to kill Alice "off with her head!")
Down the rabbit hole could mean their descent into madness but also a way to say look at what's going on underground (with the mines, the mercury, etc...)
Their feast of Jackie = the mad tea party
Eat me, drink me = the girl's eating all these different animals (and each other) that has a direct effect on their health/mental state of being whereas for Alice it made her smaller or taller
The white rabbit in the Disney movie tells the Dodo to burn down his house with Alice inside because she's overtaken the house. Literally their cabin burning.
The Walrus and the Carpenter. Persuasion for the oysters to follow them but then they all get eaten.
The whole ending scene of the movie. The game, the live animals, the tricks, the execution, Alice escaping a deteriorating place, seeing herself sleeping (two realities).
Feel free to add on if you want to. I love reading about other theories and going down that rabbit hole so I decided to take a crack at it myself. Far-fetched? Probably. But where is the fun if not to theorize while waiting for the next episode?