In 1924 a group of European poets, painters, and filmmakers founded a movement that they called Surrealism. Their central idea was that the unconscious mind (a concept Sigmund Freud had recently made famous) was the source of all imagination, and that art should try to express its contents. The unconscious, they believed, revealed itself most clearly in dreams. The Surrealist painters included René Magritte, Joan Miró, and Salvador Dalí, whose "limp watches" painting became the best-known Surrealist image of all. Since those years, we've used surreal to describe all kinds of situations that strike us as dreamlike. And even though the Surrealist movement ended long ago, surrealism now seems to be everywhere—not just in painting, literature, and movies but also in blogs, video games, and graphic novels.