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Iain McGilchrist in The Master and His Emissary, in his approach to left brain/right brain theory, presumes “each hemisphere is involved in everything” but nonetheless he argues there is a predominant form of thought attached to the different spheres of the brain.[1] It is not that there are absolute differences or that the two spheres of the brain are not continually interdependent, but this does not mean that there are not necessary differences. Afterall, as he points out, “every known creature with a neuronal system, however far down the evolutionary tree one goes, and however far back in time, has a system that is asymmetrical.” This raises the question of his research, “Why on earth would that be, given that the world they are interacting with is not asymmetrical?”[2] This asymmetrical world shows up continually in “subject versus object, alienation versus engagement, abstraction versus incarnation, the categorical versus the unique, the general versus the particular, the part versus the whole,” with either the objective and impersonal or the subjective and personal, tending to win out.[3] What I demonstrate throughout is that the categories in which McGilchrist sets his dichotomies (between the two hemispheres) easily convert to the Pauline differentiation between law and Christ with the “incarnation” overcoming “alienation” in the “particular life” of a “singular” man in which the antinomies posed by the two hemispheres, or simply by life, are overcome. I also make the case that the completion of McGilchrist’s theory, the ultimate right-brain synthesis, lies in a particular theological understanding toward which his theory points. Throughout the second half of the book he describes two forms of thought or two ways of “being” reflected in the brain and the mind, one of which I argue, culminates in Hegel’s notion of “absolute knowledge” in and through Christ.

The “master” is supposed to be the brain’s right hemisphere, which is the side most connected with the holism of personhood, as it relates vitally, and humanly to the world, taking in what is “new” without concern for objective closure. The left hemisphere is focused on detail and analysis, and rather than connecting to living things, tends to focus on the static and lifeless, on machines, numbers, and abstractions, and while both sides of the brain are involved in language, the left brain tends to reify the word. Rather than recognizing the metaphorical, emotional, and integrating role of language (connected to the right hemisphere), in the left hemisphere there is rejection of the metaphorical for the literal, and a rejection of the personal for the impersonal. The left brain is the organizing bureaucrat which is all about procedure, organization, predictability, abstraction (decontextualization), and which has no room for uniqueness. Justice, in this realm, is not a sense of making things right so much as making everything equal. In this realm, “Increasingly the living would be modelled on the mechanical.”[4] Production, speed, scale, and quantity are the focus, and not quality. Those “with schizoid or schizotypal traits will be attracted to, and be deemed especially suitable for, employment in the areas of science, technology, and administration” which have become the shaping forces of our time.[5]

Ideally the master or the right side of the brain is served by the left side of the brain, but there is a tendency in history and in the individual to cut short this integrating holism and to become focused on dissecting the details as an end in itself. Modernity, with its focus on scientism, industrialization, mechanics, materialism, information processing, or perhaps a neuro link in which the machinery is inserted directly in the brain, demonstrates how the servant can usurp the role assigned by the master.

As with illness or brain damage, there is a general trend for the left brain to close in on itself and to shut out the world beyond its own projections:

But what if the left hemisphere were able to externalise and make concrete its own workings—so that the realm of the actually existing things apart from the mind consisted to a large extent of its own projections? Then the ontological primacy of right-hemisphere experience would be outflanked, since it would be delivering, not ‘the Other’, but what was already the world as processed by the left hemisphere. It would make it hard, and perhaps in time impossible, for the right hemisphere to escape from the hall of mirrors, to reach out to something that truly was ‘Other’ than, beyond, the human mind. In essence this was the achievement of the Industrial Revolution.[6]

The mirror stage in Lacanian psychoanalysis can become terminal, in its focus on the self, to the exclusion of all else. Rene Descartes is a key example of one who turns to focus on his own thought, attempting to get at the “thinking thing” behind the thought, dissecting, isolating, refusing the body, and focused completely on interior thought. His philosophical focus follows the pattern of modernity, and betrays the same characteristics of (new) forms of mental illness which would arise in this period. In Pauline terms one is enclosed and isolated in the sinful orientation to the law.

One might extend McGilchrist’s theory to suggest a left-brain theology and atonement as well, in which Christ is made to serve the law and his death makes up for any lack or failure in regard to the law, with the law defining and determining Christ. The sickness of the left brain, the bureaucratic disease that would achieve perfection and power seem perfectly illustrated by Pharisaical Paul: one can be a perfect Jew and keep the law blamelessly (Philippians 3:6), which Christian Paul explains, was what made him the chief of sinners (I Tim. 1:15). Power through language or law presents the possibility of a limited whole which can be manipulated, but to maintain this realm it is necessary that it be complete in itself. The tendency is to see all of reality, even God and Christ, as constituted in a closed space, so that there must be an obstacle, warding off the right brain or warding off the limited nature of language and law. In McGilchrist’s description this gives rise to violence and in the case of Paul it accounts for his arresting and killing Christians. The letter, or primary attachment to Scripture and law, functions as an obstacle, killing off the unlimited vagaries of the spirit, in the Pauline sense (2 Cor. 3:6).

Rather than an embodied and social language (as in Wittgenstein) the tendency is toward a disembodied Platonism, Cartesianism, or legalism. In a Lacanian sense the symbolic order becomes a realm unto itself, with language taking the predominant role over the imagination, reducing the ego to an object. The symbolic register is the organizing center – the possibility of a subject. The “obstacle cause of desire” is the impossible desire of a desiring self. That is, one is blocked from achieving the desired object and this creates the frustrated agon, that for Lacan is the very definition of the human subject. In Paul’s picture, one serves the law, and imagines law is an end in itself, and there is a basic confusion between God and the law, which is inherently alienating. Paul describes an irresolvable split within himself (Rom. 7:15). This Pauline bilateralism within the ego is reflected in McGilchrist’s picture of how it is that we become an obstacle to ourselves. The left brain cuts off the integrating powers of the right brain in the same way the law cuts off from the person of God or the absolute personal reality of Christ.

The work of Christ, is to suspend the law, sublating or suspending while also preserving and fulfilling. Through Christ Paul escaped the delimited world of the law as in Christ the law is delimited (pointing beyond itself), and human brokenness is not a failure in regard to the law, but the failure, and incompleteness of the law as a guide. Christ does not complete human obligations in regard to the law, but suspends the punishing effects of a defective orientation to the law.

The fact that McGilchrist uses the Pauline word describing the suspension of the law in Christ (aufgehoben) indicates that imposing a Christian or Pauline understanding is not foreign to his project. He uses the word in the context of the Hegelian synthesis, in which Hegel deploys Luther’s translation of Paul’s καταργηθῇ, which is a suspension of the punishing effects of the law and its simultaneous preservation. The right brain cannot function apart from the left brain but at the same time it tends to pose an obstacle to its integrating powers. Christ is recognized through the law, through Judaism, through the Scriptures, but taken as their own end these are an obstacle to Christ. The ill effects of sin are when the emissary is thought to be the master. The sin condition, which is a misorientation to the law or a reification of the law, amounts to something like the obstacle the left brain often poses to the right brain. One cannot get rid of the law, any more than function with half a brain, but the ill effects of the law can be suspended in Christ (while the law and Judaism are preserved).

By the same token, it is not that a more holistic (right brain) Romanticism abolishes the Enlightenment or that any particular age is a complete departure from the one that preceded. McGilchrist specifically sights the Hegelian synthesis to express the full integrating power of the right brain. “The movement from Enlightenment to Romanticism therefore is not from A to not-A, but from a world where ‘A and not-A cannot both be true’ is necessarily true to one where ‘A and not-A can both hold’ hold (in philosophical terms this becomes Hegel’s thesis, antithesis – synthesis).”[7] Elements of the Enlightenment are found in Romanticism, just as elements of the Hebrew Scriptures frame understanding of Christ. This synthesis found in Christ is precisely not supersessionist or anti-nominalist, though in the thought world of the left brain and the law this must necessarily be the case.

As Jordan Wood notes, Hegel distinguishes two kinds of thinking: there is finite thinking in which antinomies such as subject/object (along with all of the Kantian antinomies) hold as the one always implies and depends upon its opposite and this “permanent opposition” is definitive of the terms.[8] In Lacan and Žižek’s Hegel, this antagonism and ultimate negativity (death drive) is what gives the appearance of truth and a human Subject. Truth inheres in a lie and the subject arises as a result of this power of negation. In McGilchrist’s definition, this would be the ultimate left-brain materialism and sickness (which Žižek would acknowledge in his notion that the best we can do is “enjoy our symptom”).

Jordan provides a more orthodox reading of Hegel: “Infinite or “rational” thinking is thinking in itself—or better, thinking thinking itself—since here the thinking subject and the object thought are one, and are directed to an inward identity that brooks no definite term.”[9] Hegel has in mind the divine Subject and his thought, shared in Christ, in which there is a move from finite to infinite thinking. As Jordan describes, the theological picture of Hegel’s “knowing” is not the finite but an infinite ground, both subjective and objective. In the subjective, “human reason ‘from below’ is in truth God’s self-knowing “from above” as the Spirit in us.” The objective ground is “God’s Incarnation as a single human individual establishes the conditions for intuitive certainty that the divine nature is such that it can communicate its entire identity as the concrete oneness of abstract opposites, of the infinite and the finite, subject and object, etc.—and this communication is also the form of speculative logic.”[10] This integrating unity of the knower and the known is Hegel’s “absolute knowing,” the goal and means of his “speculative thinking.” That is, this absolute is not closed but open to continual speculation, incorporation, and synthesis.

McGilchrist describes a left-brain failure in theology – reification of the word, focus on the book or the letter as opposed to the integrating factors of the right brain. He argues, the Reformation is a refusal of the metaphorical, and in this the Reformation preserves the Enlightenment rejection of the mysterious and a turning of the imagination to the word. “In their search for the one truth, both movements attempted to do away with the visual image, the vehicle par excellence of the right hemisphere, particularly in its mythical and metaphoric function, in favour of the word, the stronghold of the left hemisphere, in pursuit of unambiguous certainty.”[11] There is a loss of a sense of the “real presence” of Christ in “an endlessly repeated and deferred” symbolism, devoid of its signified. Though he does not explicitly connect the fulness of the right brain with the person of Christ, he does note the “real presence is displaced by a sign, “re-presentations not presentations.”[12]

Where the Greek and Hebrew logos or the law is an entity apart from God, the incarnation enfleshes the Word – which seems unthinkable in the left-brain world. The incarnation of the Word is the ultimate synthesis which personalizes all things and which demands an infinite openness to the new, the unique, and the different. The Word is not that which reduces to sameness but it preserves difference. As long as the left brain, the law, or the symbolic order is predominant, subject-object opposition, bilateralism, dichotomy, dualism, or what Hegel refers to as finite knowing, are clearly in place. Synthesis, integration, or participation in the Word does not obliterate difference but it passes beyond, not through sameness or obliteration of difference, but through recognition that God has made himself available to thought. This Hegelian picture of the role of Christ seems to be the natural implication toward which McGilchrist’s theory points.

For McGilchrist, perhaps in the spirit of Maximus or Origen, we are cocreators, in many senses, of the world we inhabit, as our understanding or perception is shaped by our perspective, our theory, our hypothesis, or even the apparatus of the brain through which we apprehend but this this means of apprehending is not neutral but is itself shaped by our thought. That is there is continual feedback between the mind and brain, and it may be impossible to separate the interplay between the two. McGilchrist recognizes that his theory may serve only as a metaphor, which floats free of cerebral hemispheres, and point to two ways of being in the world. As he puts it,

If it could eventually be shown…that the two major ways, not just of thinking, but of being in the world, are not related to the two cerebral hemispheres, I would be surprised, but not unhappy. Ultimately what I have tried to point to is that the apparently separate ‘functions’ in each hemisphere fit together intelligently to form in each case a single coherent entity; that there are, not just currents here and there in the history of ideas, but consistent ways of being that persist across the history of the Western world, that are fundamentally opposed, though complementary, in what they reveal to us; and that the hemispheres of the brain can be seen as, at the very least, a metaphor for these.[13]

His work is pointing to the primacy of metaphor, connectedness, and synthesis, so he is content if his work serves this purpose. The Christological conclusion, which he does not name but which seems a natural extension of his work, is the Personalism of Hegelian Christology.

Afterall, it is the refusal of the primacy of the personal, of narrative, of metaphor, of openness, that describes the human disease. Only in brain damaged patients, or those who suffer mental illness, can it be said the physical brain is controlling thought but what can be seen in these instances (such as autism or schizophrenia) is the trend which McGilchrist sees as characteristic trends of modernity; narrow focus, reification of language, and depersonalization, but these are precisely the symptoms Paul describes as entrapment to the law. In Christian terms, the disease is addressed and cured in the Person of Christ, as the personal depth of creation, and participation in personhood open up the left-brain to infinite knowledge and synthesis of the right-brain.

[1] Iain McGilchrist, The Master and His Emissary: The Divided Brain and the Making of the Modern World (New Haven: Yale University Press, 2019) Thank you to Jim for acquiring this book for me.

[2] Ibid, 2.

[3] Ibid, 462.

[4] Ibid, 430.

[5] Ibid, 408.

[6] Ibid, 386.

[7] Ibid, 353.

[8] Jordan Wood, “Hegel as Alexandrian Christian: Or, Against False Piety,” from his Substack: Words in Flesh, Sep. 3^rd,2025. This wonderful piece just appeared as I was writing.

[9] Hegel, Encyclopedia of the Philosophical Sciences in Basic Outline [Enc hereafter], Part I: Science of Logic. Translated and Edited by Klaus Brinkmann and Dnaiel O. Dahlstrom (Cambridge: Cambridge University Press, 2010 [1817]), 28. Cited in Wood.

[10] Ibid, Wood.

[11] McGilchrist, 315.

[12] Ibid, 317.

[13] Ibid, 461.