This article addresses concerns about the relationships between practice and theory in today's theatre and examines the discipline's analytical methodology. This contribution re-introduces Yuri Lotman's concept of semiosphere as an anthropological and social space of communication, in which every participant maintains their existence concurrently across temporal, linguistic, and cultural zones. Finally, by launching the notion of a theatrical semiosphere that embraces the dynamics of cognitive impulse in the tripartite proximity of the space of the stage, the space of the audience, (...) and the space of the “in between,” this study seeks to demonstrate how the transitory nature of theatrical communication directed at the multiple audio-visual, cognitive, and cultural sensors of actors and spectators can still be considered and studied from the perspective of semiotic exchange as the primary device of human cognition. (shrink)