The absence of the normal, i.e., waking, relationship between the overt behavioral state of the body and private, subjective experience is a fundamental characteristic of both hypnosis and dreaming sleep. Both states demonstrate a dissociation between mind/brain subprocesses that, in the waking state, are highly coordinated. Although the concept of dissociation has been central to theories of hypnosis for many years, it has not been developed in dream theory - despite the many shared features of the two states. This paper will briefly review the primary characteristics of dreaming that can be attributed to mind/brain dissociations and then examine in greater detail dissociations in the visual imagery-oculomotor system during dreaming.