What are the basic concepts in Carl Jung's theory of dreams?

Jung was the founder of the school of analytical psychology. His main theories were those of collective unconscious, archetypes, individuation, and typology based on extaversion-introversion with four functions (thinking, feeling, sensing and intuition). Collective unconscious is, according to theory, the part of mind shared by every human being. It contains archetypes, universal psychological structures. The aim of the individuation is wholeness, through the integration of unconscious forces and motivations underlying human behavior.