Lewin's extension of dream psychology into the study of the narcissistic neuroses is considered as a model which may be helpful in explaining certain aspects of psychosomatic disorders. In this framework, a physiological dysfunction is considered to function as a mechanism of defense against the latent passive wish—the maintenance of a regressive breast cathexis—in the same way that

hypomania or depression disguises and denies the latently existing wish for satisfying narcissistic sleep.