Naturalistic Entheogenics: Précis of Philosophy of Psychedelics
The précis defends a "naturalistic entheogenic" response to the Comforting Delusion Objection, arguing that psychedelic therapy produces its benefits primarily by altering the sense of self and one’s relation to their mind rather than by inducing non‑naturalistic metaphysical beliefs. Consequently, the book contends, entheogenic insights and forms of spiritual growth can be genuine and epistemically respectable within a naturalistic worldview.
Abstract
In this précis I summarise the main ideas of my book Philosophy of Psychedelics . The book discusses philosophical issues arising from the therapeutic use of classic psychedelic drugs such as psilocybin and LSD. The book is organised around what I call the Comforting Delusion Objection to psychedelic therapy: the concern that this novel and promising treatment relies essentially on the induction of non-naturalistic metaphysical beliefs, rendering it epistemically (and perhaps, therefore, ethically) objectionable. In the book I develop a new response to this Objection which involves showing that a popular conception of psychedelics as agents of insight and spirituality is both consistent with a naturalistic worldview and plausible in light of current scientific knowledge. Exotic metaphysical ideas do sometimes come up, but they are not, on closer inspection, the central driver of change in psychedelic therapy. Psychedelics cause therapeutic benefits by altering the sense of self, and changing how people relate to their own minds and lives--not by changing their beliefs about the ultimate nature of reality. Thus, an "Entheogenic Conception" of psychedelics as agents of insight and spirituality can be reconciled with naturalism (the philosophical position that the natural world is all there is). Controlled psychedelic use can lead to genuine forms of knowledge gain and spiritual growth--even if no Cosmic Consciousness or divine Reality exists.
Research Summary of 'Naturalistic Entheogenics: Précis of Philosophy of Psychedelics'
Introduction
Letheby presents a précis of his book Philosophy of Psychedelics, which examines philosophical issues raised by therapeutic use of classic serotonergic psychedelics (e.g. psilocybin, LSD). He frames the book around what he terms the Comforting Delusion Objection: the worry that psychedelic therapy owes its benefits to the induction of non-naturalistic metaphysical beliefs (for example, belief in a cosmic consciousness), and that this undermines its epistemic and possibly ethical standing. Against that objection, the author aims to develop a naturalised Entheogenic Conception: an account showing that the traditional view of psychedelics as agents of insight and spirituality can be reconciled with metaphysical naturalism and supported by contemporary empirical and theoretical work. The précis outlines the book’s structure: historical and phenomenological review, an argument that changes to self-representation are central to therapeutic mechanisms, a predictive-processing account (predictive self-binding) of ego dissolution, and a defence that psychedelic-induced epistemic and spiritual benefits can be understood naturalistically.
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Letheby, C. (2021). Naturalistic Entheogenics: Précis of Philosophy of Psychedelics. https://doi.org/10.31234/osf.io/ztewb
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