Boreas is the Greek personification of the North Wind, one of the four Anemoi (wind gods) who rule the cardinal directions. In classical mythology, Boreas was worshipped as a powerful, often violent deity associated with winter, cold, and the fierce blasts that sweep down from Thrace. He was depicted with wings and streaming hair, and the myths attributed to him the abduction of the Athenian princess Oreithyia.

In the Atalanta Fugiens, Boreas occupies the critically important position of Emblem I, the opening emblem that sets the terms for the entire work. The motto derives from the Emerald Tablet of Hermes Trismegistus: 'The wind carried it in its belly' — one of the foundational utterances of the Hermetic tradition. Maier literalizes this metaphor by depicting Boreas as a dramatic male figure with streaming hair, carrying an embryo visible in his belly. This philosophical embryo is the seed of the Stone, the prima materia in its earliest gestational stage, borne within the volatile, airy substance of Mercury.

De Jong traces the emblem's sources to the Pseudo-Lullian tradition, where argent vive (quicksilver) serves as the prima materia from which, in the Lullian schema, God creates all things. Forshaw identifies Boreas as an unusual male representation of Mercury, since the volatile principle is more typically personified as female in alchemical allegory. This gender reversal is significant: it signals that the mercury Maier invokes is not ordinary quicksilver but philosophical Mercury, the universal solvent that transcends gendered categories while carrying the generative sulphurous seed within itself.

The discourse of Emblem I develops the gestation metaphor at length, connecting the wind-borne embryo to the Kitab al-Thalath Kalimat (Book of Three Words) of Khalid ibn Yazid, which equates the philosopher's stone's development with human fetal development. Maier's two sons of Boreas — one red-haired and one white-haired — represent Sulphur and Quicksilver, the two principles whose interaction drives the entire fifty-emblem sequence. The Emerald Tablet, the Pseudo-Lullian writings, George Ripley's Scala Philosophorum, and Arabic alchemical sources all converge in this opening emblem.

The Ritman Library in Amsterdam possesses a seventeenth-century painting that pairs this first emblem with the last (Emblem L, the dragon and the woman in the grave), suggesting that contemporary readers understood the work's circular structure. Boreas carrying the embryo at the beginning mirrors the mutual destruction of dragon and woman at the end: both encode the volatile principle's role in bearing, transforming, and ultimately completing the Stone.

For a reader encountering alchemical symbolism for the first time, Boreas demonstrates Maier's method: a classical god is adopted not for his mythological story but for a single, striking image — the wind carrying something in its belly — which is then revealed to encode a chemical process. The North Wind becomes the volatile mercury, the embryo becomes the philosopher's stone in embryo, and the act of carrying becomes the gestation of gold within the maternal body of the universal solvent.

Meanings Across Registers

De Jong shows that alchemical terms operate simultaneously across material, medical, spiritual, and cosmological dimensions.

Alchemical

The North Wind of Emblem I who carries the swaddled infant in his belly: figure of the volatile aerial principle (philosophical air or spirit) that transports the embryonic Stone through gestation in the sealed vessel.

Medical

The cold, dry north wind of Hippocratic meteorology: bracing and astringent, it figures the constitutional cooling necessary to balance phlegmatic excess and to fix unstable spirits in the body.

Spiritual

The pneumatic carrier of the nascent soul; the bracing inrush of inspiration whose chill must be endured before its life-giving cargo can be brought to term within the contemplative.

Cosmological

The Hyperborean wind issuing from the cosmic North Pole: the celestial axis-direction whose cold spiritus, carrying the seed of generation, descends to fertilize the sublunary world.