Jung identified two ways of thinking. One way is directed and orderly and based on words and structure. The other way is based on a dream like approach and based on images and fantasy.
The modern tendency has been to focus heavily on the directed way of thinking. This has led to many great scientific achievements. On the other hand, our past generations tended to focus on the more image/symbol based thinking thus leading to artistic and literary creations which have been unmatched since.