"One side will make you grow taller, and the other side will make you grow shorter."
"One side of what? The other side of what?" thought Alice to herself.
"Of the the mushroom," said the caterpillar, just as if she had asked it aloud; and in another moment was out of sight.
—Alice's Adventures in Wonderland by Lewis Carroll
Who Stole the Tarts? by Salvador Dali
Alice's Adventures in Wonderland has been analyzed and interpreted for hidden meanings and symbols for decades. One common theme is the subliminal reference to drugs, specifically hallucinogens that alter perception.
In 1969, surrealist Salvador Dali illustrated his version of the classic children's book. His wild images seem to reiterate what the Cheshire Cat told Alice:
"We're all mad here. I'm mad. You're mad."