Darke Sentences: Vigenère's Chain of Knowing
The 17th century French diplomat and cryptographer Blaise de Vigenère published a treatise on fire and salt. The title is literal — Traicté du Feu et du Sel — and the premise acts as alchemy at its most reductive, where the whole of transformation is compressed into a simple binary: two principles, two substances. Vigenère’s text, however, is actually stranger than its title suggests. It is not really about fire or salt. It is about the impossibility of speaking about anything for the first time. And the implication that an idea, once spoken, cannot be controlled or contained and may perpetuate beyond its source in ways its speaker never intended.
The treatise opens with Pythagoras. Not Pythagoras directly — no one has Pythagoras directly — but Pythagoras as received through tradition, “held to have made more profound search, and with less incertainty penetrated into the secrets as well of Divinity, as of Nature.” Already the syntax demonstrates the author’s argument: Vigenère is reading Pythagoras, who is reading the Mosaic tradition, who is reading — what? The mind of God, presumably, but even Moses received the law on tablets, which is to say, in written form, which is to say, as a text that was already a mediation, rather than a direct link to the mind of God — a shared consciousness. The chain has no first link.
This raises the question: are there other links in this chain lost to time? Or, better still, how do we trust any source of knowledge when its origins are so obfuscated or enigmatic?
Vigenère builds an elaborate scheme of attribution: Pythagoras borrowed from the Hebrews. The Egyptians and Chaldeans borrowed from both. Scripture conceals philosophy within ritual. Every source, when you press it, reveals a prior source beneath. Vigenère moves through these layers with the confidence of a man who has spent decades in the archives of other people's reading — which he had, literally: before writing on alchemy, he spent years translating and annotating classical texts, and before that, a foundational cipher of modern cryptography. He was a man professionally devoted to the idea that every surface meaning conceals a deeper one, and that the concealment is both method and feature rather than flaw.
This is the treatise's subtle radicalism. Vigenère never claims to have discovered anything himself. He does not position his text as a source but as a commentary — on Pythagoras, on Moses, on Mark 9:49 (“every man shall be salted with fire”), on a chain of prior readings stretching backward into a darkness he treats as generative rather than empty. And the remarkable thing is that his commentary feels enriched rather than diminished by its secondariness. Each layer of mediation adds a new context and texture. Vigenère reading Pythagoras is not a degraded copy of Pythagoras reading Moses. It is a new act of understanding that could not have existed without the distance spanned.
There’s also a serious epistemological claim, not just a historical curiosity. What Vigenère demonstrates — almost against his own intentions, since he would probably have said he was simply recovering ancient wisdom — is that knowledge does not degrade as it passes through commentary. It transforms. It acquires texture, context, contradiction—and, yes, flavor, the way fire and salt season food. This suggests that scholarly annotation in this method comes from within rather than passively from outside, the way a river that continues the rain that feeds it without becoming the rain itself.
We still seek originals. We distrust commentary. But this is precisely what Vigenère's chain of attribution makes impossible to sustain. There is no moment in his treatise where a source appears without already being a reading of something else. Moses is already interpreting. Pythagoras is already annotating. The “darke sentences” in which ancient knowledge arrives are not failures of transmission but the very form that deep knowledge takes — because what matters is not the content in isolation but the relationship between reader and text, the transformation that occurs when one mind meets another across the distance of centuries and tradition and language.
This is, I think, the secret argument of the Traicté du Feu et du Sel, hidden inside its alchemical metaphors the way Vigenère says philosophy is hidden inside scripture. Fire transmutes rather than destroys. Salt seasons the object, changing its nature through contact rather than merely preserving it. Some of these passages — on preservation, on the spaces between — I recognize all too well.
Commentary is the fire that transmits, not destroys. And what emerges from that intersection is not a diminished copy of some lost original but something new: knowledge that has transited a human mind, becoming something new but not altogether different from what had entered.
Perhaps there are no original texts. Perhaps all we have across the whole of human history are the ongoing commentaries of others past — some survived, some lost. Provenance falls away when meaning lives in interpretation alone. All of which would otherwise be impossible without someone first having named the unnamable, the sacred unmentionable somehow spoken. And once spoken, renders the anomalous more familiar.
Notes:
My copy of Vigenère’s Traicté du Feu et du Sel is an English translation from roughly 1649. Though I find his ideas intriguing, I cannot speak to his traditions, nor the potential differences between the English and French versions of the text.
The alchemical opus transforms the practitioner alongside the substance in the vessel. The lapis is not just produced but undergone, meaning the text is already a record of anomalous experience: knowledge inseparable from the encounter that produced it.
Can anomalous experience even be articulated in the raw moment, becoming meaningful only through layers of interpretation and introspection afterward? Could mediation be the process by which the darke sentence reveals what was latent beneath the letter, rather than a distortion of it?
Might some knowledge require encryption to survive transmission, as Vigenère's cipher requires a key and his alchemy requires a veil? Is it possible that indirection serves not to obscure but to protect what cannot be stated directly?
Both alchemy and anomalous experience are relational: the alchemist needed the soror mystica, the student needed the master, the work could not be done alone or in full daylight; and the witness exists, not to verify the event empirically, but to receive the account and become the next link in the chain of knowing.
Alchemical transformation is irreversible: one does not un-calcine, nor reverse the nigredo. Could anomalous experience operate similarly, reorganizing the knower so permanently that the distinction between encounter and ordinary learning dissolves? Where does ordinary dream end and extraordinary vision begin?
By D. Bowman Nomina Numina is a journal of my reflections, moments, and meaning-making between worlds. Reply by email.