Carl Jung, Synchronicity

Published in 1952 as Synchronicity: An Acausal Connecting Principle. Can be found in Jung’s Collected Works, vol. 8: The Structure and Dynamics of the Psyche. Synchronicity is the experience of two or more events as meaningfully related, where they are unlikely to be causally related. The subject sees it as a meaningful coincidence, although the events need not be exactly simultaneous in time.