ontological constituents of the world, namely, space, time, causality, and the nature of objects. This phenomenological discussion will allow us to adapt a set of concepts from philosophical anthropology and apply it to schizophrenia, namely, the concept of "world openness" and the need to reduce that openness. We shall focus on one of the more puzzling aspects of schizophrenia, what psychiatrists call "thought insertion" (Stephens and Graham, When self-consciousness breaks: Alien voices and inserted thoughts. The MIT Press, Cambridge, 2000). We shall then all-too-briefly indicate the difference between an early stage of schizophrenia and a later one. "— End of Abstract'" /> "The delirious illusion of being in the world" - Wiggins Osborne P; Schwartz Michael Alan; Schwartz Michael A. | sdvig press