The issue of Irma's opening her mouth "properly," to which Freud connects his wish to replace her with her friend, leads him to the "navel" of the dream, the descent into which he either will not make or will not share with us. The images (cf. Freud's reminder of this aspect of Irma in 6.D) are "oral" in the psychodynamic sense, and hence preoedipal and [arguably] connected with oral sex acts, Freud's interest in which at this time is attested by the Fliess letters [cf. "Dora"]). Freud's interest in the nose in this period is the prototype of some of his later thinking about orality, and about obsession. (see Freud, 1909, p. 248)]