Jung's lifelong interest in the paranormal contributed significantly to the development of his influential but controversial theory of synchronicity. In this volume Roderick Main brings together a selection of Jung's writings on topics from well-known and less accessible sources to explore the close relationship between them. In a searching introduction he addresses all the main aspects of synchronicity and clarifies the confusions and difficulties commonly experienced by readers interested in achieving a real understanding of what Jung had to say. This book provides an excellent companion to Jung's Synchronicity: An Acausal Connecting Principle (Routledge) and reveals the full extent and range of Jung's researches into a range of psychic phenomena which are still not yet adequately explained.