Clinical Varieties of Transference 1955
In the history of psycho-analysis there has often been a delay in the direct application of analytical metapsychology. Freud was able to formulate a theory of the very early stages of the emotional development of the individual at a time when theory was being applied only in the treatment of the well-chosen neurotic case. (I refer to the period of Freud's work between 1905 and 1914.)
For instance the theory concerning the primary process, primary identification, and primary repression appeared in analytical practice only in the form of a greater respect that analysts had, as compared with others, for the dream and for psychic reality.