- tasies, are as real as remembrances of events that have once
been real.
As the term "regression of libido" shows, we understand by this retrograde mode of application of the libido, a retreat of the libido to former stages. In our example, we are able to recognize clearly the way the process of regression is carried on. At that farewell party, which proved a good opportunity to be alone with the host, the patient shrank from the idea of turning this opportunity to her advantage, and yet was overpowered by her desires, which she had never consciously realized up to that moment. The libido was not used consciously for that definite purpose, nor was this purpose ever acknowledged. The libido had to carry it out through the unconscious, and through the pretext of the fright caused by an apparently terrible danger. Her feeling at the moment when the horses approached illustrates our formula most clearly; she felt as if something inevitable had now to happen.
The process of regression is beautifully demonstrated in an illustration already used by Freud. The libido can be compared with a stream which is dammed up as soon as its course meets any impediment, whence arises an inundation. If this stream has previously, in its upper reaches, excavated other channels, then these channels will be filled up again by reason of the damming below. To a certain extent they would appear to be real river beds, filled with water as before, but at the same time, they only have a temporary existence. It is not that the stream has permanently chosen the old channels, but only for as long as the impediment endures in the main stream. The affluents do not always carry water, because they were from the first, as it were, not independent streams, but only former stages of development of the main river, or passing possibilities, to which an inundation has given the opportunity for fresh existence. This illustration can directly be transferred to the development of the application of the libido. The definite direction, the main river, is not yet found during the childish development of sexuality. The libido goes instead into all possible by-paths, and only gradually does the definite form develop. But the more the stream follows out its main channel, the more the affluents will dry up and lose their importance, leaving only traces of former activity. Similarly,
