The vibrant secret of life is always hidden between two, and it is the true mystery that words cannot reveal and arguments cannot exhaust. C. G. Jung. In personal dialogue, much can be expressed more simply and directly than is possible in scientific work. Dr. Gerhard Wehr, an intimate connoisseur of C. G. Jung, comments on a selection of important insights from his letters that astonish with their relevance and wisdom. The book also provides a good introduction to the discoveries of one of the greatest psychologists of the last century.