This research focuses the analyst in the relationship with his being. Since psychoanalysis is not a simple set of learned and applied techniques, the difficulty of their craft becomes complex and unique and especially to the psychoanalyst, we pose the problem of their presence. Thus, Freud realized the very influence that the psychics process of the analyst could produce in an analysis, so that, for him, it would be necessary that the analyst found himself in a particular subject position. Position that would be, among others, the effect of a personal analysis. This, for him, should serve to the analyst's being disappear, ie, opacity and psychic asepsis. And as a kind of official position to refer to the analyst's position, it was raised the principle of abstinence and its correlates: neutrality and coldness. From there, it can be argued that most of Freud's technical recommendations was guided in an attempt to correct or prevent the inevitable contamination of his position by his being. However, there is no choice, because first of all, the analytic space includes inevitably two beings, even though to witch one is designated to occupy a position. In turn, the analytical community founded two great paradigmatic destinations for the analyst in the relationship with his being. On the one hand, operate via countertransference and on the other, via the analyst's desire. However, as a methodology, it was searched by the crossing of paradigms, the conditions to approache the subject by other perspectives and from other notions. It was considered necessary to take a step back. One can see that Sándor Ferenczi, precursor of countertransference, experienced psychoanalysis trying to give an authenticity to the analytic relationship. On the other hand, although Jacques Lacan has gone in a different path-for him the countertransference designates the transference's effects that reach the analyst's desirelike Ferenczi, we can argue that he also searches an authenticity in the analyst. Thus, it was noted that this one with or against the other one, together they did not stopped to question the authenticity of and in the analyst and its decisive role in the treatment. Both authors are the theoretical references of this research. So, before the multiplicities and polysemies of the psychoanalytic arrangement, the main objective of this thesis is to discuss that the psychoanalytic clinic itselfformed by his own method, technique and theory-can find in the notion of authenticity, a possible measure of their paths to think about the irreducible tension between the position of the analyst and his being. Thus, it was possible to realize that this concept may become a condition for the analyst's position as well an important clinical operator while a favorable perspective for the effects of the analytic work.
