Divine mania comprises a fascinating array of experiences, which could be voluntary or involuntary, intense or mild, and were interpreted as an invasive divine power within one's mind, or illumination granted by a superhuman being. Greece was unique in its attitude to alteration of consciousness and the prominent position of the divine mania in Greek society reflects its acceptance of the inborn human proclivity to experience alteration of consciousness, interpreted in positive terms as god-sent. These mental states were treated with cautious respect and in contrast to the majority of complex societies, ancient and modern, were never suppressed or pushed to the cultural and social periphery.