Carl Jung thinks that the inner psyche of human has three levels: consciousness, unconsciousness, and collective unconsciousness; and its structure includes: Self, ego, shadow, complex, archetype, Anima and Animas.

The ultimate goal of Jungian Analysis (Analytical Psychology) is the growth of life that is called as the "individuation process". This process is not an intellectual and behavior development. A mature personality can gradually emerge through the exploration of the unconscious and people can be themselves. The individuation process is an unconscious process. The unconscious is mysterious and rich as the undiscovered underground treasure. The methods of exploring the unconscious are dream interpretation, Sandplay therapy, picture interpretation, and the understanding of different symbolic meanings in the process.