Refers to a waistcoat-wearing, pocket-watch-wielding white
rabbit, hurrying along and muttering, "Oh dear! I shall be late!" in Lewis Carroll's Alice in Wonderland (1865), whom Alice follows down a rabbit hole into Wonderland.
Awesome rock band Jefferson Airplane's 1967 song White
Rabbit retold the story of Alice's adventures as though they were a psychedelic drug trip. But whether you take it literally or metaphorically, following the white
rabbit means following an unlikely clue, an innocuous, unbelievable (but also, frankly a
bit ridiculous) sign, to find oneself in the midst of more or less extraordinary, marvelous, amazing circumstances that challenge
one's fundamental beliefs, expand
one's horizons &/or perception of realities, transform
one's perspective, and change
one's life.
The phrase has become commonplace in popular culture; e.
g. in the 1999 film The Matrix, the resistance fighter folks use the trope of following a white
rabbit to lead Neo/Mr Anderson/The
One out of the matrix. Oddly enough, though, the phrase hasn't filtered through as a metaphor in non-fantastical contexts to any appreciable degree. Outside of science fiction or fantasy, if a writer refers to the white rabbit, s/he is almost certainly specifically alluding to previous uses, usually to Carroll. (We should change that!)
'There's something fishy going on here.'
'
Well,' said Q, jerking her head toward the door to the stairwell, through which the tattooed woman was disappearing. 'You'd
better follow the white
rabbit, then.'