Is that we all share minds that project.
So if "I" think a thought,
Then by "you" it is caught:
Synchronicity means we connect.
Carl Gustav Jung's concept of collective unconscious is based on his experiences as a psychoanalyst. Though initially Jung followed the Freudian theory of unconscious as the psychic strata formed by repressed wishes, he later developed his own theory on the unconscious to include some new concepts. The most important of them is the archetype.
Archetypes constitute the structure of the collective unconscious - they are psychic innate dispositions to experience and represent basic human behavior and situations. Thus mother-child relationship is governed by the mother archetype. Father-child - by the father archetype. Birth, death, power and failure are controlled by archetypes. The religious and mystique experiences are also governed by archetypes.
Archetypes manifest themselves through archetypal images (in all the cultures and religious doctrines), in dreams and visions. Therefore a great deal of Jungian interest in psyche focuses on dreams and symbols interpretation in order to discover the compensation induced by archetypes as marks of psyche transformation.
The collective unconscious is an universal datum, that is, every human being is endowed with this psychic archetype-layer since his/her birth. One can not acquire this strata by education or other conscious effort because it is innate. In a sense it is a pool of innate knowledge that the mind is "projected" into and "reflection" taken from.
In his subsequent work with the Nobel prize winning Physicist, Wolfgang Pauli he developed a interdisciplinary theory of a psycho-physical effect known as "Synchronicity" , or the "Acausal Connection Principle". The understanding of Quantum Mechanics lends credence to the notion that Quantum Systems can be connected when "entangled". This has lead some to speculate on the quantum basis of the mind/consciousness. Indeed perhaps an unconscious part of us is a shared thing, where "I" and "you" is really a connected "one", or "Other".
