“As scientific understanding has grown, so our world has become dehumanized. Man feels himself isolated in the cosmos, because he is no longer involved in nature and has lost his emotional “unconscious identity” with natural phenomena. These have slowly lost their symbolic implications.
Thunder is no longer the voice of an angry god, nor is lightning his avenging missile. No river contains a spirit, no tree is the life principle of a man, no snake the embodiment of wisdom, no mountain cave the home of a great demon. His contact with nature has gone, and with it has gone the profound emotional energy that this symbolic connection supplied. This enormous loss is compensated for by the symbols of our dreams.”
“Man and his symbols” by C.G.Jung
The basic idea behind Jungian dream theory is that dreams reveal more than they conceal. They are a natural expression of our imagination and use the most straightforward language at our disposal: mythic narratives. Dreams are doing the work of integrating our conscious and unconscious lives; he called this the process of individuation.