The avant-garde movement in art and literature of the early 20th-century that sought to release the creative potential of the sub-conscious mind, for example by the irrational juxtaposition of images is often termed as surrealism.
In the words of Salvador Dali, Surréalism is said to be the symbolic language of the subconscious; truly a universal language, it doesn’t depend on education, culture or intelligence.
Surréalism means cleansing your mind of what you have seen and be on the look out of "what has never been."