Psyche, Matter and Synchronicity

In 1948, and with Pauli s enthusiastic support, Jung began to write down his thoughts on synchronicity. A two-year correspondence ensued, with a focus on psyche and matter, and the importance of acausality within the frameworks of physics and psychology.
This paper traces the improbable interaction between the physicist and the psychologist, as these great scientists enrich and merge their formative views on acausality. Bolstered by his dreams, Pauli draws a correspondence between psychology and atomic physics, centring on the 'psychophysical problem', including synchronicity. Seminal thoughts are discussed, such as the need to broaden the concept of the archetype, and to recognize that the future of analytical psychology is not to be found primarily in therapy but in a 'unified holistic conception of nature and the status of man within it'. Two world pictures were constructed, identifying a non-causal (non-rational) side to reality, as experienced both in physics and the psyche. Pauli discusses his concept of a 'neutral language', the aim being to bridge the gap between psyche and matter, both of which are seen to rest on a common foundation, known to the alchemists as the unus mundus. The collaboration was highlighted with the publication of their book, The Interpretation of Nature and the Psyche (1952), which emphasizes the archetypal influence of archetype on consciousness.