In this paper we present a prototype approach to awe. We suggest that two appraisals are central and are present in all clear cases of awe: perceived vastness, and a need for accommodation, defined as an inability to assimilate an experience into current mental structures. Five additional appraisals account for variation in the hedonic tone of awe experiences: threat, beauty, exceptional ability, virtue, and the supernatural. We derive this perspective from a review of what has been written about awe in religion, philosophy, sociology, and psychology, and then we apply this perspective to an analysis of awe and related states such as admiration, elevation, and the epiphanic experience.In the upper reaches of pleasure and on the boundary of fear is a little studied emotionÐawe. Awe is felt about diverse events and objects, from waterfalls to childbirth to scenes of devastation. Awe is central to the experience of religion, politics, nature, and art. Fleeting and rare, experiences of awe can change the course of a life in profound and permanent ways. Yet the field of emotion research is almost silent with respect to awe. Few emotion theorists consider awe in their taxonomies and those who do have done little to differentiate it from other states.In this paper we offer a conceptual approach to awe. To do so we first review what has been written about awe outside of psychology, which turns out to be significant and illuminating. This literature review identifies two themes that are central to aweÐthat the stimulus is vast and that it requires accommodationÐas