Quotation

"Paradoxically, then, if Freudian interpretation is both positioned and questioned by the operation of the thing (the unconscious, the Other) that it reads, the condition of its insight is at the same time the condition of its error. This play between blindness and insight means that psychoanalysis is neither a straightforward discourse of truth (science) nor of falsehood (fiction); instead, psychoanalysis unsettles the binary opposition of truth and fiction, finding that each strangely inhabits the other. The fact that psychoanalysis occupies this troubling hinterland between reality and fantasy, truth and invention (just as the symptoms it studies belong straightforwardly neither to the psyche nor the body, but inhabit the hybrid space of the psychosomatic) means that psychoanalysis challenges the divisions by which we habitually think. As a discourse it demands that we open the familiar categories of our understanding to the “Other”, the repressed, the strange, the unconscious. In continual renewal itself, psychoanalysis requires that we, too, perpetually renew our symbolic constructions of language, culture and the mind.
According to Peter Brooks psychoanalysis – as an encounter with psychic and symbolic otherness, and the unconscious – constitutes itself as “inherently dialogic” (...), a field of open and perpetually opening debate. Psychoanalytic interpretation, literary or otherwise, can never come to rest in any final truth or final cure; it preserves what Elizabeth Wright calls the “incalculable”."

Steven Vine (ed), "Literature in Psychoanalysis",
Palgrave Macmillan, 2005, p. 14

Source: http://www.palgrave.com/PDFs/0333791754.Pdf

NOTE: ALL THE INTRODUCTION OF THIS BOOK IS VERY INTERESTING - IT IS AVAILABLE ON LINE (PDF)
(THE RED COLOUR IN CERTAIN PARTS OF THE QUOTATION IS A RESULT OF MY READING)