A Summary of Fabricius on Splendor Solis, the Zodiac, and the Planets

I first encountered Johannes Fabricius’s Alchemy: The Medieval Alchemists and Their Royal Art, written under a pen name borrowed from the famous Renaissance alchemist, sometime in the mid‑nineties. By then I had already published The Kabbalah of the Golden Dawn, where I divided the alchemical process into three interwoven levels, echoing the Sepher Yetzirah’s division of the cosmos into the triad, the seven, and the twelve. For several years I had been developing an analysis of the Splendor Solis, applying this three‑tiered model to its sequence of plates and demonstrating how the stages unfold simultaneously depending on the vantage point from which one views the work. Up to that point, most occult and alchemical groups relied on either the seven‑stage or twelve‑stage systems, and some texts expanded the process into even more elaborate sequences. My own approach emphasized that all stages occur at once, and that the only real shift between the three levels is the interpretive mechanism through which the alchemist perceives the unfolding opus.

To my astonishment, and proving once again that there is nothing new under the Sun, I discovered that Fabricius had also mapped zodiacal and planetary attributions onto the Splendor Solis plates. His treatment of alchemical symbolism is exceptionally insightful, and anyone within the Golden Dawn tradition who is also pursuing alchemical studies would benefit enormously from his interpretations. Although his book surveys a wide range of alchemical texts, it is his discussion of the Splendor Solis that I found most compelling, and it is this section of his work that I have chosen to examine more closely in light of his astrological and planetary correspondences.

Fabricius approached the Splendor Solis not simply as a sequence of alchemical images but as a cosmic drama in which the heavens and the earthly work of the alchemist mirror one another. His central insight is that the plates are not random allegories but astrological emblems, each one structured around the influence of a particular planet or zodiacal force. For Fabricius, the alchemical opus is never merely chemical; it is a ritual participation in the rhythms of the cosmos, and the Splendor Solis plates encode this relationship visually. He shows how the imagery, kings dissolving in baths, suns rising over darkened landscapes, hermaphroditic figures, and vessels containing strange hybrid creatures, corresponds to the cyclical interplay of planetary energies. The plates become a kind of celestial calendar, mapping the inner transformation of the alchemist onto the great wheel of the heavens.

Fabricius emphasizes that the Splendor Solis artists worked within a worldview where astrology, alchemy, and cosmology were inseparable. Each of the plates, showing the actions, through the imagery within the flasks, he argues, is governed by a planetary ruler whose qualities shape the symbolic action. Saturn presides over images of decay, putrefaction, and the blackening stage; Jupiter governs scenes of expansion, kingship, and the emergence of order; Mars appears in plates of conflict, division, and fiery purification; the Sun and Moon dominate the central illuminations of union, rebirth, and the appearance of the red and white tinctures. Fabricius shows how these planetary signatures are not merely decorative but structural, determining the emotional tone, colour palette, and symbolic motifs of each image. The plates thus become a visual astrology lesson, teaching the viewer how the heavens imprint themselves upon the alchemical work.

He also highlights the role of the zodiac as a deeper, more archetypal layer beneath the planetary rulers. The zodiacal signs, in Fabricius’s reading, provide the framework of transformation, the great cosmic cycle through which the alchemist’s matter, and soul, must pass. Aries and Taurus correspond to the fiery beginnings of the work, the ignition of the prima materia; Cancer and Leo mark the swelling and ripening of the substance; Libra and Scorpio govern the descent into dissolution and the confrontation with the shadow; Sagittarius and Capricorn signal the ascent toward crystallisation and the emergence of the Stone. Fabricius reads the plates as seasonal metaphors, where the alchemical vessel becomes a microcosmic zodiac, and the transformations within it echo the turning of the heavens.

What makes Fabricius’s interpretation so compelling is his insistence that the Splendor Solis is not a coded chemistry manual but a cosmic psychology. The planetary and zodiacal forces are not external influences but inner archetypes, shaping the alchemist’s emotional and spiritual journey. Saturn’s melancholy, Mars’s aggression, Venus’s harmonising power, and the Sun’s radiant integration all appear as psychological states mirrored in the imagery. Fabricius, as a Jungian analyst, sees the plates as mandalas of transformation, where the heavens symbolise the deep structures of the psyche. His work on the associations of the planetary plates to the Cantilena of George Ripley, in a familiarity that indicates a solid depth of knowledge on alchemcial symbolism. The zodiac becomes a map of individuation, and the planets become the archetypal energies that guide, and challenge, the alchemist on the path toward wholeness.

In this way, Fabricius bridges medieval cosmology and modern depth psychology. The Splendor Solis plates, in his reading, are astrological mirrors of the soul, showing how the alchemist’s inner work unfolds in harmony with the celestial rhythms. The zodiac and planets are not superstitions but symbolic languages describing the timing, mood, and archetypal quality of each stage of the opus. Fabricius’s contribution is to show how deeply the Splendor Solis is rooted in the medieval conviction that the heavens and the human soul are woven from the same fabric, and that true alchemy is the art of aligning the inner and outer cosmos.