Since he was a boy, Sigmund Freud had been having unusually detailed dreams. His interest in dreams had always been keen, and almost superstitious. He wrote to Martha, his wife, about one instance when he had a blissful dream of a landscape, "which, according to the private note-book on dreams which I have composed from my experience indicates traveling" (Thornton, pp. 209). In his writing "Studies" his first interest in dreams was shown, where he reported unusually vivid dreams, beginning in late 1894. At about this time some of his patients began to relate their dreams, which they often explored in their psychoanalytical sessions. (Thornton, pp. 210) .
Even though there are no factual reasons on why we dream, there are several theories on the subject. Freud's theory is that dreams show us our hidden desires. There is also Jung's theory that dreams carry meaning, although not always of desire, and that these dreams can be interpreted by the dreamer. After these theories, others continued such as the Cayce theory in which dreams are our bodies" means of building up of the mental, spiritual and physical well being. Finally came the argument between Evans' theory and the Crick and Mitchinson theory. Evans states that dreaming is our bodies way of storing the vast array of information gained during the day, whereas Crick and Mitchinson say that this information is being dumped rather than stored. (Freud, pp. 88-93).
Throughout time, while many dream theories have surfaced, Freud"s theory definitely stands out the most. He believed that a dream represented an ongoing wish along with the previous day's activities. They may even portray wishes that have been inside us since early childhood. In fact, he believed, every dream is partially motivated by a childhood wish. Also, according to Freud, nothing in a dream is fiction; everything is .
biologically determined, influenced by instinctual needs and personal experiences.