The psychological phenomenon of a suddenly appearing, extremely enigmatic, and at the same time fascinating state in which one feels influenced by higher powers was described as a “numinous experience” by R. Otto and C. G. Jung. This condition is one of those subjectively non-rational experiences that have so far received little attention in cultural clinical psychology and yet have great potency to explain psychopathological phenomena. In the first section of this paper, we work towards a contemporary psychological definition both by focusing on the roles of paradoxical cognitions and dissociation and by presenting various differentiations and possible explanatory mechanisms. In the second part of this paper, we describe the numinous state as it occurs in selected clinical phenomena such as the subjective experience of potentially traumatic events including near-death experiences, sexual abuse of children, post-traumatic stress disorder, severe states of mourning (diagnosed today as prolonged grief disorder), and sleep paralysis. This paper is intended as a theoretical proposal aimed at better understanding subjectively non-rational states in patients.