"Synchronicity: the acausal binding principle" is a landmark work of the outstanding Swiss psychiatrist and psychologist Carl Gustav Jung. In this book, the author considers the concept of synchronicity as a principle that connects events that seem independent in time and space, but have a deep psychological connection. Carl Gustav Jung argued for the idea that certain events can have meaning and connection not only through cause-and-effect relationships, but also through synchronicity - coincidence in time, which is important for the human psyche. The author examines examples of synchronic phenomena in various aspects of life and psychology, investigating the nature of this phenomenon and its impact on individual and collective mental development. The book "Synchronicity: An Acausal Linking Principle" invites the reader to delve into the world of sacred symbols, archetypes and collective unknowns to understand the deep connections between human psychic experience and the external world. This book will be a valuable resource for anyone interested in psychology, spirituality, and philosophy."