"It must have been 25 years since I first saw the book," wrote C.G. Jung in 1947. "But then I couldn't get through because of the maze of architectural fantasies." It wasn't until much later that Jung became fascinated by the alchemical symbolism in the work. One of his friends / colleagues, the Jungian psychologist, Linda Fierz-David, made an interesting attempt to interpret Poliphilo's Dream. The Bibliotheca Philosophica Hermetica in Amsterdam has the original German language version: Der Liebestraum des Poliphilo, 1947, Rhein-verlag, Zurich. In English translation called: The Dream of Polophilo – The Soul in Love, 1987, Spring Publications, Inc. Dallas. Can also be found and ordered online. Jung in his foreword to Fierz-David's book: "Poliphilo's Dream provides a picture of the transition from the Middle Ages to the Renaissance, the transition of two eras, and for that reason alone is of great importance for the world in which we now live, which after all also in transition is wrong. "