C.G. Jung discusses the intriguing phenomenon of dreaming about individuals just before receiving a letter from them. He suggests that there is a curious connection between these dreams and the timely arrival of correspondence, implying a deeper link between our subconscious experiences and external events. Throughout his observations, he notes instances where such dreams coincide with the actual delivery of letters.

This suggests that our unconscious mind might be attuned to events occurring in the physical world, leading to a sense of synchronicity. Jung's exploration of these connections raises questions about the nature of time, perception, and the potential for acausal relationships that transcend ordinary understanding, highlighting the mysterious interplay between our inner experiences and the outer world.