If the work of art looks like a scene out of a crazy dream, it may be a work of surrealism. Surrealism is closely related to Freudian dream analysis and free association. Surrealist artists unveil the unconscious mind and release it into works of art. The Surrealist movement began in the 1920s when groups of artists would convene to discuss methods such as automatism, which is a popular Surrealist technique involving drawing or painting in free form, without thinking, in order to allow the unconscious mind to take over and produce the artwork. Surrealist painting is often characterized by bizarre scenes and subject matter, seen in the works of famous Surrealist artist Salvador Dali, who painted objects such as melting clocks. Works of Surrealism tend to surprise or even deceive the viewer, exemplified in works by René Magritte. Works of Surrealism can be playful and also dark and psychologically rich.