Every psychoanalytic model requires a myth of psychic birth that orients clinical practice. Taking the mother–infant relationship as the paradigm of treatment, the paper argues that the psyche emerges as an intersubjective process in which the unconscious is originally a shared “we.” Through dialogue with Bion, Winnicott, Merleau-Ponty, Hegel, Nancy, and Jullien, and by way of the mythological figures of Cupid and Psyche and Orpheus and Eurydice, a theory of intercorporeality is elaborated as a constitutive dimension of the analytic bond. Significant technical consequences follow: the priority of implicit over explicit interpretation, the centrality of dreaming, and an ethical conception of treatment grounded in the opacity of the body and in affectivity as a bonding function.