This paper proposes the concept of enactive system as an alternative to the standard human-computer system and elaborates the idea of content mediation as enactive media. The authors' system consists of the two elements coupled in a holistic manner by means of bodily and spatial involvement, or enactment. Such a system is recursive by nature, involving the impact of the technology on the human agent as well as the effect of the human experience on the technology. Instead of the standard explicit interface, there is an implicit connecting surface, based on unconscious psycho-physiological reactions. The aim is not only to point out an analytic approach to existing media systems but also to develop radically novel media concepts implied by the enactive systems.