what I am designating before this appeal of the patient’s most profound being at the moment that he comes to ask for our aid and our help, that which in order to be rigorous, correct, impartial, in order also to be as open as is indicated by the nature of the question which is posed to us: what the desire of the analyst should be.
Lacan frames the desire of the analyst as the central, unavoidable question posed by the transference, demanding rigor and impartiality rather than evasion.
, The Seminar of Jacques Lacan, Book VIII: Transference, 2015thesis