ABSTRACT
This chapter discusses what appears to be the first version of decompositional dual-aspect monism that assigns a crucial role to meaning. Wolfgang Pauli and Carl Gustav Jung’s view, mainly developed in their correspondence, involves an underlying psychophysically neutral realm called the Unus Mundus (i.e. unitary world). What emerges is a highly innovative blend of physics and depth psychology. We use the analogy with quantum entanglement (and quantum holism) to clarify the relationship of the mental to the physical and the relation of both to an undivided psychophysically neutral domain. The phenomenon of synchronicity (i.e. non-causal yet meaningful connections) is discussed from this point of view. Empirical evidence for such phenomena is investigated in some detail, along with the well-known problem of reproducibility facing the interpretation of such events. Some initial tentative applications are then discussed in light of this analysis, including evolution and mathematical creativity. Finally, metaphysical aspects of the Unus Mundus in relation to symbols and archetypes are discussed with respect to their significance for the deep structure of meaning.
