This chapter describes key steps, with scripts, for the phases of therapy with a dissociative identity disorder (DID) client, and for an eye movement desensitization and reprocessing (EMDR) session with a DID client. In brief, the method employs the artful use of EMDR and ego state therapy for association and acceleration, and of hypnosis, imagery, and ego state therapy for distancing and deceleration within the context of a trusting therapeutic relationship. It is also endeavoring to stay close to the treatment guidelines as promulgated by the International Society for the Study of Trauma and Dissociation. The acronym ACT-AS-IF describes the phases of therapy; the acronym ARCHITECTS describes the steps in an EMDR intervention. Dual attention awareness is key in part because it keeps the ventral vagal nervous system engaged sufficiently to empower the client to sustain the painful processing of dorsal vagal states and sympathetic arousal states.