So much for the external resemblances of the parable with the dream life. The deeper affinity which can be shown in its innermost structure will first appear in the psychoanalytic treatment. And now it will be advisable for me to give readers not intimately acquainted with dream psychology some information concerning modern investigations in dream life and in particular concerning psychoanalytic doctrines and discoveries. Naturally I can do this only in the briefest manner. For a more thorough study I must refer the reader to the work of Freud and his school. The most important books are mentioned in the bibliography at the end. Modern scientific investigation of dreams, in which Freud has been a pioneer, has come to the conclusion, but in a different sense from the popular belief, that dreams have a significance. While the popular belief says that they foretell something of the future, science shows that they have a meaning that is present in the psyche and determined by the past. Dreams are then, as Freud’s results show, always wish phantasies. [I give here only exposition, not criticism. My later application of psychoanalysis will show what reservations I make concerning Freud’s doctrines.] In them wishes, strivings, impulses work themselves out, rising to the surface from the depths of the soul. When they come in waking life, wish phantasies are sometimes called castles in the air. In dreams we have the fulfillment of wishes that are not or cannot be fulfilled. But the impulses that the dreams call up are principally such wishes and impulses as we cannot ourselves acknowledge and such as in a waking state we reject as soon as they attempt to announce themselves, as for instance, animal tendencies or such sexual desires as we are unwilling to admit, and also suppressed or “repressed” impulses. As a result of being repressed they have the peculiarity of being in general inaccessible to consciousness. [Freud speaks particularly of crassly egoistic actuations. The criminal element in them is emphasized by Stekel.]