What are the conditions of possibility for dreaming? What are the "a priori" in dreaming, if ever they exist? What is dreaming as an experience? What
are space and time in dreaming? What are the ways of expression of body and senses in the experience of dreaming? Phenomenology seems to be interested in formulating and answering these questions, putting aside the dream’s content, which usually captures attention. It is as if the phenomenology of dreaming gave primarily consideration to how dreaming is structured as an experience, and how this specific experience belongs to the horizon of the ‘world-of-life’. When phenomenology is applied to a dream, the shape or structure of dreaming, rather than the contents, become the battle horse. A proving example of how the experience of dreaming can question the structural elements of phenomenology is given, in a dream, by the indissoluble intersection of the atmospheric and eidetic elements. This paper focuses on dream and dreaming as a specific human experience of ‘being-there-in-the world’, which determines and structures the existential situation of ‘being-there-in-the-dream’, i.e. the dreamer as ‘person-who-is-in the dream’.
Keywords: Atmospheric, eidetic, oneiroid, delirium, existence, a priori, experience, dreaming.