Hemera- Greek PrimordialPrimordial"Day"

The Threshold at the World's Edge

Hemera was born from Erebus and Nyx — Day from the union of Darkness and Night — alongside her brother Aether, the bright upper air. Hesiod places their dwelling at the farthest edge of the world, beyond the stream of Oceanus.

There Atlas stands, holding the broad sky steady on his head and tireless hands, stationed where Night and Day draw near and greet each other as they cross the great bronze threshold. Nearby dwell Sleep and Death, the twin sons of Night. Sleep moves gently among mortals, kind to those he visits, but Death has a heart of iron — whomever he catches, he holds, and even the immortal gods despise him. The sun never shines on either of them, whether climbing the sky or descending. Below yawns the mouth of Tartarus, girded by bronze walls and ringed with triple layers of darkness, and above it grow the roots of the earth and the barren sea.

At the center of this place stands the great house of Night. Hemera and Nyx share it, but the house never holds them both. Each evening, Hemera crosses the bronze threshold as Nyx steps out to sweep darkness across the earth; each morning, Nyx returns as Hemera goes forth bearing light. They greet one another in passing, and each takes her turn — day and night alternating without end, separated by a single step across polished bronze.

An Alternate Cosmogony

Hyginus preserves a different tradition. In his genealogy, Hemera and Aether together produced Gaia, Uranus, and Pontus — Earth, Sky, and Sea, the foundations of the physical world. Day and Bright Air came first; everything solid followed from them. Hesiod tells it otherwise: Gaia emerged from Chaos on her own and bore Uranus without any father.