Ancient Origins

For pre-scientific civilisations, the movement of the sun across the sky posed a profound cosmological question: where does it go at night? The answer that virtually every ancient civilisation arrived at was not "it disappears" but "it continues — beneath the earth, through the underworld, in its hidden form." The sun never ceases to exist. It simply becomes invisible, passing through a realm beyond ordinary perception before emerging again at dawn.

This is the conceptual origin of what we call the Black Sun — not a symbol of evil or nihilism, but a cosmological necessity. If the sun is the source of light and life, then the darkness of night must be explained by that same sun continuing its journey in a domain hidden from human sight. The nocturnal sun, the sun beneath the earth, the sun in its dark or invisible form — this is the Black Sun in its original conception.

The implications are significant: the Black Sun is not the opposite of the sun but its complement. The same force that illuminates the day also passes through the darkness of the night. Light and darkness are not opposing principles but phases of a single continuous process. This is the cosmological foundation on which all later symbolic uses of the Black Sun idea — alchemical, occult, mythological — rest.

The most fully developed ancient account of the hidden sun comes from Egypt. In Egyptian cosmology, Ra — the solar deity — travels across the sky in his solar barque by day, bringing light and order to the visible world. At sunset, he enters the western horizon and begins a twelve-hour journey through the Duat — the Egyptian underworld, conceived not as a subterranean realm of punishment but as the nocturnal sky: the portion of the cosmos hidden below the horizon.

The Amduat (literally "What is in the Duat") — one of the oldest Egyptian funerary texts, found in the tombs of the New Kingdom pharaohs from approximately 1550 BCE — is a detailed map of this journey. It describes twelve hours of the night as twelve regions of the Duat, each with its own geography, guardians, challenges and transformations. Ra does not simply pass through these regions unchanged. He dies and is reborn within the Duat — the old sun merging with Osiris (the lord of death and transformation) in the fifth and sixth hours, before re-emerging as the young sun Khepri at dawn.

In the Amduat, Ra's nocturnal form is described as having a ram's head — the opposite of his daytime falcon or solar disc form. This ram-headed Ra in the underworld is in every meaningful sense a "Black Sun": the solar principle in its hidden, transformed, death-adjacent state. The Egyptians depicted him as a dark or shadowed figure, surrounded by the absolute darkness of the deep Duat, accompanied by the coiled serpent Apophis who threatens to swallow the solar barque and prevent the sun's rebirth.

The defeat of Apophis — achieved through the magical rituals performed by priests in Egyptian temples each night — was the condition for sunrise. The Black Sun had to successfully pass through the Duat and overcome the serpent of chaos to become the visible sun again. This cycle — every single night — was the cosmological foundation of Egyptian civilisation.

In Mesopotamian cosmology, the sun god Shamash (Sumerian: Utu) was understood to make a daily circuit that included both a visible journey across the sky and an invisible journey beneath the earth. At sunset, Shamash entered the western mountain (the gateway of the setting sun) and travelled through the underworld — the realm of the dead called Kur or Irkalla — before emerging from the eastern mountain at dawn.

The Mesopotamian underworld was a place of absolute darkness — a realm "where the sun is not seen," as the Gilgamesh epic describes it. But the sun's passage through this darkness was essential: it was Shamash's nightly journey through Kur that brought whatever degree of relief the dead experienced in that grim realm. The sun's light, however hidden, was the only light the dead possessed.

The concept of a hidden or nocturnal sun is not limited to Egypt and Mesopotamia. It appears, in recognisably similar form, across cultures that had no direct contact with each other — suggesting that it represents a universal response to the cosmological problem of night.

In Hindu cosmology, the sun god Surya is understood to have a dark counterpart — the shadow planet Rahu, which periodically swallows the sun during eclipses, creating the momentary darkness of a Black Sun event. The concept of the "dark sun" as an eclipse phenomenon became the basis for an entire branch of Vedic astrology (covered in the Vedic section of this series).

In Norse cosmology, the sun goddess Sol (or Sunna) is pursued across the sky by the wolf Sköll, who will eventually swallow her at Ragnarök — creating the eschatological Black Sun of the Norse world's end. The sun that has been swallowed, that is hidden, that no longer illuminates — this is the Norse version of the Black Sun as cosmic catastrophe.

In Mesoamerican cosmology, the Aztec Five Suns doctrine describes four previous solar ages that each ended in a different catastrophe — including one ended by a rain of fire (a burning, destructive sun) and one by flood. The current Fifth Sun (Nahui Ollin) will end in earthquake. Each cosmic age ends with the sun's destruction — the Black Sun as the end of an epoch rather than the sun's nightly renewal.