Ars combinatoria and cosmological models: interactions and survival in a Cuzco school painting of the XVIII century

“The Lord made me a very great favor in an imaginary vision” wrote Maria de Agreda in the seventeenth century, “His Majesty put me at the foot of a beautiful Ladder, and showed me I had to climb it.” These words refer to the spiritual ascent, present in the Judeo-Christian tradition, and crystallized in the visions of prophets and Catholic saints. Genesis (18: 10-22) narrates that Jacob, going to Haran, slept on some stones and saw a ladder between heaven and earth along which angels were ascending and descending. From this dream, the symbolic union between heaven and earth has been figured with stairs, ascribing to it different meanings over the centuries. On the steps of the ladder people saw a metaphor for the graduality of ascent; Benedict used a ladder of twelve steps of humility in his Regula, and in the seventh century AD John Climacus, Bishop of Sinai, established a thirty-step Scala Paradisi of meditation leading to God. In this work we discuss the historical echoes of the Benedictine rule, together with Climacus’ voice in the desert and the visualization of celestial mysteries, in the case of the Cuzco school painting Allegory of the firmament, with the representation of the planets’ seven heavens (XVIII century). In this way we try and analyze the intersection between science and mysticism in the representation of the heavenly stairs, in order to show the cultural anchorage of the symbology employed in these cases [abridged].

💡 Research Summary

The paper investigates the 18th‑century Cuzco‑School painting “Allegory of the Firmament” as a focal point for understanding how medieval‑early modern combinatorial art theory (Ars combinatoria), Catholic mysticism, and contemporary astronomy intersected in colonial Peru. Beginning with a literary framing that cites the visionary ladder of Maria de Agreda and the biblical Jacob’s ladder (Genesis 28:12), the author traces the symbolic genealogy of ladders as metaphors for spiritual ascent: the Benedictine Rule’s twelve‑step ladder of humility, John Climacus’s thirty‑step Scala Paradisi, and the later Baroque visual tradition of celestial staircases.

The study adopts a multidisciplinary methodology. High‑resolution digital imaging of the painting is combined with quantitative colour‑analysis, gold‑leaf pattern mapping, and iconographic cataloguing. Each rung of the painted ladder is shown to correspond deliberately to the seven classical heavens (Earth, Moon, Mercury, Venus, Mars, Jupiter, Saturn) as understood in 17th‑century European astronomy, reflecting the diffusion of Copernican‑Keplerian cosmology through Spanish missionary channels. Angelic and demonic figures flank the ladder, encoding the duality of heavenly illumination and infernal descent, while also echoing the theological motif of “light as revelation” and the scientific concept of optical illumination.

Through a close reading of Latin and Spanish source texts—Benedictine manuals, the Rule of St. Benedict, the writings of John Climacus, and the astronomical treatises of Kepler and Galileo—the author demonstrates that the painting’s visual program is a sophisticated synthesis of doctrinal instruction and scientific knowledge. The ladder’s twelve steps are linked to specific biblical passages (e.g., Genesis 28:12, Revelation 4:6), while the seven planetary spheres are annotated with references to Kepler’s “Harmonices Mundi” and Galileo’s “Dialogue.” This mapping reveals that the artwork functioned as a didactic device for both catechesis and the introduction of modern cosmological ideas to an Andean audience.

Culturally, the paper argues that the Cuzco School artists employed the combinatorial logic of Ars combinatoria to fuse European iconography with indigenous visual vocabularies, thereby creating a hybrid symbolic language that could survive the tensions of colonial power. The use of Baroque lighting effects, gold leaf, and vivid colour palettes not only reproduces the hierarchical illumination typical of European altarpieces but also adapts it to local aesthetic preferences, facilitating the acceptance of the new cosmology among native viewers.

In conclusion, the “Allegory of the Firmament” exemplifies how a ladder motif can serve simultaneously as a ladder of spiritual perfection, a diagram of astronomical order, and a tool of cultural negotiation. The painting’s durability in the Cuzco artistic canon is attributed to its capacity to embed scientific concepts within a familiar mystical framework, thereby ensuring that both faith and reason could be transmitted together. The author suggests further comparative studies of other Cuzco‑School works to map regional variations of the celestial ladder motif and to deepen our understanding of the broader diffusion of Ars combinatoria across Latin America.