The world today doesn't make sense, so why should I paint pictures that do?  ~Pablo Picasso

Picasso                            from google image

When we think of the time Picasso and Miro and others painted it makes sense he would feel this way.  Unrest in Europe, a world war, economic depressions, and suppression of artists.  Miro learned to use a language of symbols and Picasso learned to focus in on cubism and other aspects of art. But as we see in his mural of Guernica he could not always refrain from reacting to the horrible senseless violence around him.

Miro                                  from google image