Omnipotent control occupies a foundational position in depth-psychological accounts of early object relations, developmental psychology, and the phenomenology of transitional experience. The term designates the infant’s primary mode of relating to reality before the recognition of the object’s independent existence — a state in which the world is experienced as an extension of the self, responsive to the subject’s wishes without resistance. Winnicott is the decisive voice here: he situates omnipotent control as the defining characteristic of a pre-transitional space, the very condition from which cultural and symbolic life must differentiate itself. In his formulation, the potential space of play and culture is precisely the territory lying beyond objects ‘outside omnipotent control.’ Developmental theorists following Mahler extend the concept into the practicing subphase, linking it to the toddler’s inflated grandiosity. Object-relations clinicians — Klein, Kalsched — attend to its pathological persistence in adult life, where it manifests as envy, projective identification, and the survival-self’s totalizing defenses. Hillman approaches the concept from a different angle, treating the fantasy of absolute solitary governance — the tyrannical mind absolved of relations — as its cultural and archetypal cognate. The concept thus bridges clinical infant observation, traumatology, and the broader critique of domination, making it indispensable to any serious engagement with the depth-psychological literature on self, object, and power.