The line comes from The Matrix, released in 1999, during Neo's visit to the Oracle where a young boy bends a spoon with his mind. Instead of forcing the spoon to move, the boy explains that the trick is realising there is no spoon inside the Matrix. The quote spread widely in pop culture, philosophy discussions and later meme edits because it sums up the film's central idea in five simple words. It is still used whenever creators want a calm, instantly recognisable reference to simulation, perception and bending the rules of reality.