The Oedipus Complex Lacan analyses the Oedipus complex in terms of a metaphor because it involves the crucial concept of substitution; in this case the substitution of the Name-of-the-Father for the desire of the mother. This fundamental metaphor, which founds the possibility of all other metaphors, is designated by Lacan as the Paternal Metaphor.
Repression and Neurotic Symptoms Lacan argues that repression (secondary repression) has the structure of a metaphor. The 'metonymic object' (the signifier which is elided) is repressed, but returns in the surplus meaning produced in the metaphor. The return of the repressed (the symptom) therefore also has the structure of a metaphor; indeed, Lacan asserts that 'the symptom is a metaphor'.
Love Love is structured like a metaphor since it involves the operation of substitution. 'It is insofar as the function of the erastes, of the lover, who is the subject of lack, comes in the place of, substitutes himself for, the function of the eromenos, the loved object, that the signification of love is produced'.
Device: Metaphor
21The following except from Dylan Evans 'An Introductory Dictionary of Lacanian Psychoanalysis' seems interesting, if nothing else, in relation to this excellent thread.