Two Buddhist philosophers refused to call Space a thing. Nagarjuna and Vasubandhu both defined it as "an absence of impinging materiality" — not a substance, not even an entity, just the not-bumping-into-anything where matter isn't.1 That sounds like a dead end. But the negation left a door ajar. If Space is pure non-impingement, then something non-impinging could be hung on it — a cosmic element that touches nothing directly and yet, by sitting behind the whole natural world, presses on human life from the outside. That something was Ether. The "non-view" of Space made the cosmic element possible. A definition built to empty the category quietly furnished it.2
Start with the conservative reading. In the Theravada and Mahasasaka schools, Space (Akasa) was recognized as uncompounded and without the capacity to produce mental "moment events" — it doesn't generate experience the way the four touchable elements do.3 Nagarjuna and Vasubandhu went further into the negative: Space is "an absence of impinging materiality," a hole in the field of contact rather than a member of it.1
That negative definition is the hinge. Because Space impinges on nothing, others used it as the seat for a fifth, cosmic element — Ether — defined as non-impinging by nature.4 Ether is not directly connected to the human world. But it could affect it indirectly, via the environment.5 So Ether became something like a karmic pattern or underlay — a Vasana — of the natural world itself, structurally similar to the Alaya vijnana of the human realm.6 (Vasana means a latent karmic imprint, a habit-residue; the Alaya vijnana is the "storehouse consciousness" that carries such imprints across moments in a person.) From a second angle, Ether was the "substance" of which both Spirits and Gods were composed — synonymous with the element of consciousness in the human realm — and it was invoked mainly when performing services of exorcism.7
Vasubandhu, the source notes, would likely have regarded all of this as irrelevant: his concern was human inner communication, clarity, and enlightenment, not a cosmology of spirit-substance.8
Follow the move, because it's a sleight worth catching. You define Space down to nothing — pure absence of impingement. That should close the question. Instead it opens a slot. A category defined as "what touches nothing" is the perfect coat-hook for anything you want to keep out of the chain of direct physical contact. Ether walks into that slot. It touches nothing directly — that's the whole point, that's why it can be cosmic and pervasive without showing up as a felt object. And then it does its real work sideways: not by impinging on you, but by being the underlay of the environment that does.5
That's the Vasana logic. A Vasana is a buried imprint that never appears in consciousness as itself; it only shapes what does appear, like a groove in a record you never see but always hear. Ether is that, scaled up to the whole natural world — a karmic underlay the cosmos runs on, affecting humans only through the environment it conditions.6 The parallel to the Alaya vijnana is exact and load-bearing: the storehouse consciousness is the personal Vasana-carrier inside a human; Ether is the cosmic Vasana-carrier outside. One groove holds your habits; the other holds the world's. The negation of Space gave the tradition a place to put a force that works on everything precisely because it bumps into nothing.
This page completes the element set the vault's two main element pages stop short of. Elemental Consciousness Principles handles the four touchable elements as consciousness-functions; Ether is the fifth, non-touchable member that works only through the environment — the one that can't be a personal consciousness-function because it isn't connected to the human realm directly. Five Elements Consciousness Manifestations Detailed catalogs manifestations in body and mind; Ether's "manifestation" is structurally different — it shows up as the underlay of the natural world, not as a state in a person, so it stretches the catalog into a new register. And its sibling Theravada Element Etymologies left Akasa with four unsettled readings; this page shows where the relational reading of Space leads — straight into Ether as the cosmic non-impinging element.
Read the line where Dukes says Ether is "like a karmic pattern or underlay (Vasana) of the natural world, and somewhat similar in nature to the Alaya vijnana of the human realm."6 The structure is a mirror held up between person and cosmos. Inside a human, the Alaya vijnana is the storehouse that carries karmic imprints from moment to moment — the buried layer that conditions experience without ever being experienced as itself. Outside, in the natural world, Ether plays the identical role: a non-impinging underlay that conditions the environment without ever being a felt object.
What makes this a real case and not a loose analogy is the second identification Dukes records: from another point of view, Ether was the substance of Spirits and Gods, and therefore synonymous with the element of consciousness in the human realm.7 So the parallel isn't "Ether resembles the Alaya" — it's that the same consciousness-stuff is being read at two scales. In a person it's the storehouse consciousness; in the cosmos it's the substance of gods and spirits. The element of consciousness is the bridge term. And note where this got used: not in meditation theory but in exorcism services.7 When a tradition needs to deal practically with spirits, it reaches for the cosmic-consciousness element — Ether is the working category for the boundary between the human realm and what lies outside it. The metaphysics and the ritual line up: the substance gods are made of is the substance you invoke to move them.
Night. A house where something is wrong — the family says a presence won't leave. The exorcist doesn't treat the spirit as a foreign body to be expelled by force. He treats it as Ether — the same non-impinging cosmic consciousness-substance that gods and spirits are made of, the underlay behind the visible world.7 He works not on the spirit directly, because Ether touches nothing directly, but on the environment — the room, the thresholds, the air the family breathes — because that's the only channel through which a non-impinging element reaches the human realm.5 He is, in effect, editing the Vasana of the place, the karmic groove the house has settled into. The logic is the same one the meditator uses on his own Alaya vijnana, only turned outward: you don't grab the storehouse imprint and yank it, you change the conditions so a different pattern can settle. By the end nothing has been "touched." The room simply runs a different underlay than it did when he arrived.
The chain here is multi-step and worth keeping honest. The firm part: Nagarjuna and Vasubandhu defined Space as "an absence of impinging materiality" — Dukes cites Anacker (p. 81) for Vasubandhu.1 The softer part is everything built on it: "this 'non-view' of Space made it possible for others to establish the element Ether."4 Those "others" are unnamed, and the Ether-as-cosmic-Vasana and Ether-as-spirit-substance readings are presented without a single attributed school. Dukes even tells you Vasubandhu himself would have found it irrelevant.8 So Ether sits on the negative definition of two named philosophers but is elaborated by an unnamed downstream tradition — 🚩 SINGLE SOURCE for the elaboration, firm only for the Space-as-absence premise underneath it.
The Rutherford line needs a flag of its own. Dukes writes that "nearly 2000 years before Rutherford's Cambridge experiments, the early 'elemental' Buddhists first asserted that atoms, being compound in their physical nature, could not be indivisible (and therefore could be 'split')."9 [SPECULATIVE] — this is an anachronistic framing. The Buddhist claim was metaphysical (atoms are compound, hence impermanent, hence in principle divisible), made for spiritual ends; Dukes himself adds it "did not result in an ancient Indian Nuclear Physics."10 Reading it as a scientific anticipation of atomic fission imports a modern physics narrative onto a claim that was never about physics. The structural insight — compound implies divisible — is real and consistent with the rest of the element doctrine; the Rutherford packaging is the part to quarantine.
Open: who were the "others" who established Ether as a cosmic element? The whole spirit-substance and exorcism apparatus hangs on an unattributed tradition, and identifying it would tell us whether Ether is a mainstream Mahayana category or a localized ritual development Dukes is reporting from a narrower lineage.
Dukes is doing something delicate here and it's worth naming as it actually reads. He takes a negative definition from two of the most rigorous figures in Buddhist philosophy — Space as sheer absence — and then walks it forward into a fully populated cosmology of spirit-substance and exorcism that those same figures never endorsed. He's honest about the seam: he says outright that Vasubandhu would have found the Ether categorization irrelevant.8 So the page contains its own counter-evidence, which is to Dukes's credit. But the practitioner motive shows in which way he leans — toward the elaborated cosmology, because his Kempo frame needs a working category for the spirit-realm and for exorcism, not just an empty logical negation. Against the vault's critical-historical corpus, the move from "Space is non-impingement" to "Ether is the substance of gods, used in exorcism" is exactly the kind of leap that wants a named downstream school and gets an unnamed "others." And the Rutherford gloss is the practitioner-scholar reaching for a modern hook that the material doesn't support. Where Dukes converges with rigor: he preserves Vasubandhu's dissent rather than burying it, and he flags that the atom-splitting "did not result in an ancient Indian Nuclear Physics." The honest reading keeps the firm premise (Space as absence) and the elaboration (cosmic Ether) at clearly different confidence levels — which is what the source itself, read carefully, invites.
Manas Self-Looping and Pudgalabhava — That page locates the Alaya vijnana as the storehouse the ego-loop eventually produces — the eighth consciousness carrying personal karmic imprints. This page puts the cosmic twin beside it: Ether as the Alaya of the natural world, the underlay carrying the world's imprints. Read together they reveal a single architecture deployed at two scales — a Vasana-carrier inside the person and a Vasana-carrier outside it, both working by conditioning rather than by direct contact. The insight neither produces alone: the Manas page explains how a personal storehouse gets built (auto-referencing, frame by frame); placed next to Ether it raises a sharp question — does the cosmic underlay have an equivalent generative loop, or is it imprinted purely from the outside? The personal model has a mechanism; the cosmic model, as Dukes leaves it, has only a structure. The handshake exposes the missing engine in the cosmology.
Field Theories of Mind — Western field-and-environment theories of mind argue that cognition isn't bounded by the skull — that a person's mental states are partly carried by, and continuous with, the surrounding environment. Ether-as-Vasana is a fourteen-hundred-year-old structural cousin: a non-impinging underlay that conditions human life only through the environment, never by direct internal contact.5 Both refuse the tidy boundary between "inside the agent" and "outside in the world" — the conditioning crosses it. Neither domain alone gets the full point: the psychology supplies the modern argument and the empirical pressure for an extended, environment-coupled mind; the Buddhist frame supplies a worked example where the cosmos itself carries karmic imprints that reach the person through the field they inhabit, plus a ritual technology (exorcism as environment-editing) for acting on it. One theorizes the boundary-crossing; the other has a practice that already assumes it.
Sharpest implication: the most rigorous Buddhist philosophers emptied Space into pure absence — and that very emptying is what gave a later tradition the room to hang an entire cosmos of spirits, gods, and karmic underlay on it. The negation furnished the metaphysics it was meant to foreclose.
Generative questions: