Gerhard dorn imagination is the star in man

The phrase does not originate with Dorn but passes through him from Paracelsus — and Jung's encounter with it in Ruland's alchemical lexicon is one of the more consequential moments in Psychology and Alchemy. Ruland defines imaginatio as "the star in man, the celestial or supercelestial body," and Jung pauses over this definition with unusual care, calling it "astounding" and treating it as a key to the entire opus.

What Dorn inherits from Paracelsus is the doctrine of the astrum — the star or inner firmament in the human being. This is not a metaphor for the imagination in the modern, merely subjective sense. The astrum is the quintessence, the fifth essence extracted from the four elements, the concentrated life-force of a person. When Dorn says that imagination is the star in man, he means that the act of imagining is itself a physical-psychic operation, not a flight of fancy but a real working upon real substance. Jung glosses this directly:

Imagination is therefore a concentrated extract of the life forces, both physical and psychic. So the demand that the artifex must have a sound physical constitution is quite intelligible, since he works with and through his own quintessence and is himself the indispensable condition of his own experiment.

The astrum in Paracelsus is the inner firmament — the soul beheld as a star-strewn night sky, each star a luminosity, an archetype shining from the darkness of the unconscious. Dorn inherits this and systematizes it. His own contribution is the doctrine of the scintillae — the sparks (scintillae) of the lumen naturae, the light of nature, which are scattered through the arcane substance like seeds of consciousness. He writes that the adept will "come to see with his mental eyes a number of sparks shining day by day and more and more and growing into such a great light that thereafter all things needful to him will be made known." The imagination, as the star in man, is the faculty by which these sparks are perceived — not by the outer eye but by the oculi mentales, the mental eyes.

Dorn's further move is to identify this inner sun with the imago Dei. The sol invisibilis — the invisible sun unknown to many — is both the lumen naturae and the image of God within. He writes:

For the life, the light of men, shineth in us, albeit dimly, and as though in darkness. It is not to be extracted from us, yet it is in us and not of us, but of Him to Whom it belongs... He has given us a spark of His light. Thus the truth is to be sought not in ourselves, but in the image of God which is within us.

This is the hinge on which Dorn's entire psychology turns. The imagination is not a subjective faculty generating private pictures; it is the organ through which the imago Dei — the self, in Jung's translation — becomes perceptible. To imagine rightly, in the alchemical sense, is to attend to the inner star, to let the scintillae accumulate into the sol invisibilis. Von Franz, reading Dorn through Jung's Mysterium Coniunctionis, extends this: the lumen naturae is a second source of knowledge alongside revelation, an unconscious, instinctive wisdom that Paracelsus says man "learns through dreams, among other things."

What makes Dorn's formulation philosophically precise is what it refuses. It refuses the purely spiritual reading — imagination as ascent away from matter — and equally refuses the purely material reading — imagination as brain-process. Jung identifies the intermediate territory Dorn is pointing toward: "an intermediate realm between mind and matter, a psychic realm of subtle bodies whose characteristic it is to manifest themselves in a mental as well as a material form." The astrum is neither inside nor outside in any simple sense; it is the unity of "in us" and "out there in the sky," which is why Dorn can say that the invisible sun in man and the visible sun in the world are "of one and the same sun."

The soul that imagines, for Dorn, is not producing representations of a world it stands apart from. It is participating in the same light that orders the cosmos — the lumen naturae that runs from God through the world-soul into the inner firmament of the human being. Imagination, as the star in man, is the point where that participation becomes conscious.

Gerhard Dorn — portrait of the Paracelsian alchemist whose three-stage coniunctio structures Jung's mature account of individuation
lumen naturae — the light of nature in Paracelsus and Dorn, the unconscious luminosity that dreams and imagination disclose
scintillae — the sparks of the world-soul scattered through the arcane substance, Jung's alchemical image for the archetypes
substantia coelestis — Dorn's heavenly substance, the quintessence produced at the second stage of the coniunctio

Sources Cited

Jung, C.G., 1944, Psychology and Alchemy
Jung, C.G. and Pauli, Wolfgang, 1955, The Interpretation of Nature and the Psyche
von Franz, Marie-Louise, 1975, C.G. Jung: His Myth in Our Time
von Franz, Marie-Louise, 1998, Dreams: A Study of the Dreams of Jung, Descartes, Socrates, and Other Historical Figures