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Most Quran commentators read “heart” as metaphor for spiritual understanding.

The Claim

Quran 22:46, which describes hearts in chests going blind, implies that the Quran attributes cognition and reasoning to the heart rather than the brain, contradicting modern neuroscience.

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The Short Version

Quran 22:46 does associate "hearts in chests" with understanding, but the claim strips away the dominant scholarly interpretation of the verse. Classical and contemporary Islamic tafsirs overwhelmingly treat "qalb" (heart) as a metaphor for moral insight and spiritual perception, not a literal claim about the cardiac organ performing cognition. Presenting a minority literalist reading as the Quran's definitive position, and then contrasting it with neuroscience, creates a misleading framing that overstates the conflict.

Caveats

  • The dominant classical Islamic scholarly interpretation treats 'qalb' (heart) in Quran 22:46 as a literary/metaphorical term for understanding and moral insight, not a literal anatomical claim — a critical context the claim omits.
  • The claim commits an equivocation fallacy by treating the metaphorical 'heart' as the physical cardiac organ, then contrasting it with neuroscience as though the verse makes a testable biological assertion.
  • The cardiocentric literary convention was widespread across ancient cultures and scriptures (including the Bible), making it anachronistic to single out this Quranic verse as uniquely contradicting modern neuroscience.

The Receipts

  1. The Heart's Brain: Intrinsic Cardiac Nervous System

    PubMed Central

  2. The neuroscience of cognition and reasoning

    Nature Reviews Neuroscience

  3. The Heart's Intrinsic Nervous System and Its Role in Cardiac Function

    National Center for Biotechnology Information (NIH)

  4. Intrinsic Cardiac Nervous System and Heart-Brain Communication

    PubMed/National Center for Biotechnology Information

  5. Cardiac Afferent Signaling and Emotional Processing

    National Center for Biotechnology Information (NIH)

  6. The Vagus Nerve and Gut-Brain-Heart Axis

    National Center for Biotechnology Information (NIH)

  7. The Neurobiology of Emotion Recognition and Production

    Nature Neuroscience

  8. Quran 22:46 - Multiple Translations

    Quran.com (Official Quranic Text and Translations)

  9. The Heart (qalb) - St Andrews Encyclopaedia of Theology

    St Andrews Encyclopaedia of Theology

  10. Cognitive Neuroscience: Definition, Brain Structures & Functions - EMOTIV

    EMOTIV

+ 20 more sources — see the full list on Lenz

Filed Under

IslamNeuroscienceQuranQuran 22:46

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