The Interpretation of Dreams by Sigmund Freud Chapter 3 Page 32

individual symbols and the variations in the use of what is general, one never knows whether an element in the dream is to be understood symbolically or in its proper meaning; the whole content of the dream is certainly not to be interpreted symbolically. The knowledge of dream symbols will only help us in understanding portions of the dream content, and does not render the use of the technical rules previously given at all superfluous.

But it must be of the greatest service in interpreting a dream just when the impressions of the dreamer are withheld or are insufficient.

Dream symbolism proves also indispensable for understanding the so-called “typical” dreams and the dreams that “repeat themselves.” Dream symbolism leads us far beyond the dream; it does not