Natural occurrence
Essential compensation
Definite structure reaction

The unconscious is an extremely dynamic entity that fosters much intellectual complexity. Difficulties unavoidably ensue whenever the mind seeks the unknown and imperceptible. In this regard, much of the unconscious involves things in us, which if they came to consciousness, would in no way differ from known mental content. This includes everything known but not currently thought, everything previously aware but forgotten, everything sensed but ignored, everything involuntarily felt, thought, remembered, desired, and acted upon, and all things mentally formulating that will sometime in the future come to consciousness. This last distinction is the process of intuition.
“What nature leaves imperfect, the art perfects.” – Carl Jung