Written by Oliver Cás — physician specializing in the diagnosis of rare brain diseases (neuropathology) and author. See Oliver Cás's books →
Neuroscience of Spirituality · The Brain in Prayer — Part II
The Brain and Silence
The contemplative traditions have promised, for millennia, the same improbable thing: that the way to the essential runs through losing yourself. "Die before you die", say the Sufis. The neuroscience of the last two decades has found a candidate substrate for that experience — and it has a name, an address and an electrical signature.
☨ The window of faith
At the heart of the mysticisms lies a common paradox: the self that seeks is the very obstacle. Christian apophatic theology speaks of stripping away — praying not to fill the mind but to empty it. The Pauline kenosis is self-emptying. Buddhism goes further: anatta denies that there is a substantial self to be emptied at all.
In each, the goal is not an intense emotion but a stillness in which the usual boundary between the self and everything else loosens. Contemplatives describe, with striking convergence across cultures that never met, a dissolution of the narrative center — and, within it, an encounter they can name only through negations.
⚕ The window of science
NeuroimagingStudies of contemplatives
Marcus Raichle identified the default mode network (DMN) — a set of regions active when the mind wanders, ruminates and builds the sense of "I" across time. It is the machine of the narrative self. Judson Brewer showed that experienced meditators reduce that network's activity — and that the drop coincides with reports of "effortless awareness".
Andrew Newberg recorded, with SPECT, reduced activity in the parietal lobe — the area that maps the body's boundary in space — in nuns in deep prayer and monks in meditation, a plausible correlate of the sense of dissolving limits. And Robin Carhart-Harris's psilocybin studies showed disintegration of the DMN accompanying experiences of self-dissolution.
The border — what one language cannot say in the other
Neuroscience can show how the brain produces — or permits — the dissolution of the narrative self. What it cannot do, by construction, is say what is found in the silence once the self falls quiet. That the experience has a neural substrate does not decide whether, on the other side of it, there is God, the Void, or merely rearranged noise. Finding the mechanism of an experience is not the same as judging its truth — this holds for mysticism as much as for love.
The temptation of two reductionisms
There are two easy, opposite ways to err here. The first: "it's just the parietal switching off, so mysticism is illusion." The second: "neuroimaging proves the encounter with the transcendent." Both make the same mistake — confusing the map of the how with the answer to the what. The neural correlate of an experience is neutral about its object. Discovering that seeing red has a substrate in the visual cortex does not make red a hallucination.
"Silence is the language of God; all else is poor translation." — attributed to Rumi
⚖ What science does NOT say
- Reduced DMN activity does not prove the self is an illusion — it shows the experience of the self has a modulable substrate.
- Neural correlates of mystical experience neither confirm nor refute the existence of what mystics say they encounter.
- States of self-dissolution can be destabilizing in vulnerable people; intense contemplative practices are not harmless for everyone.
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