The immense psychic/cultural shock at the sheer unprecedented scale of
the devastation of WWI led to many people
(including many artists) questioning the definition of sanity. This enormous trauma was inexorably interwoven into the birth and survival of the art movement known as dada, which in turn fed into the creation of the surrealist movement.
Have a nice day.
Lightbox here : www.flickr.com/photos/brancusi/7723427140/in/set-72157624...