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Dreams and Heightened Narrowed Immersivity

Marco Bernini

February 10, 2026 DOI: 10.1093/oso/9780198878117.003.0005 (opens in new tab)

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AI-extracted from the abstract
Characteristics Theoretical or philosophical paper
Keywords Indeterminacy philosophy Fictional universe Dream Possible world Function biology Value mathematics Epistemology Aesthetics Ontology Immersion mathematics Phenomenology philosophy
Key points Proposes that dreams are immersive experiences characterized by 'heightened narrowed immersivity' (HNI), which supports an evolutionary function against the brain's overfitting that also applies to fictional indeterminacy.

Abstract

Abstract This chapter proposes an interdisciplinary model for oneiric experientiality, which makes the case for dreams being immersive, and for immersive worlds. It compares dream and waking lives, and it provides conceptual, phenomenological, and ontological contrast by adding also our experience of fictional worlds to the mix (via the concepts of fictional immersion and ‘saturation’). The chapter argues that dreamworlds share some ontological and phenomenological properties with fictional worlds that are missing in our waking reality (or, vice versa, they lack properties that the real world displays). To capture, explore, and partly explain dreams’ phenomenological and ontological specificity, the chapter proposes a new model for dreams’ immersive experiences that it calls ‘heightened narrowed immersivity’ (HNI). The chapter concludes by suggesting that HNI supports recent theories proposing an evolutionary value for dreams against the brain’s overfitting—a function that HNI extends to fictional indeterminacy too, thus linking dreamworlds and fictional storyworlds even more.