World egg

The cosmic or world egg is the motif in which the universe emerges from an egg, which typically splits into two halves that become heaven and earth. It is among the most widely distributed cosmogonic images and is found on every inhabited continent.

Indian tradition supplies its most developed forms. The Rigveda's Hiranyagarbha, the golden womb or germ, arises in the beginning and becomes the one lord of creation (10.121). Later epic and Puranic material develops the Brahmanda, literally the egg of Brahma, as both the cosmogonic egg and, used in the plural, a term for world-systems, so that the image becomes a unit of cosmological measurement.

Chinese tradition has Pangu, who grows within an egg of chaos for eighteen thousand years, splits it so that the light and clear rises to become heaven and the heavy and turbid sinks to become earth, holds the two apart while they separate, and at his death becomes the features of the world. Orphic cosmogony in the Greek world has a silver egg from which Phanes emerges. Finnish tradition, in the Kalevala, has eggs laid on the knee of the water-mother, from whose fragments the earth, sky, sun and moon are formed. Egyptian material at Hermopolis has a cosmic egg, and Polynesian, Japanese, and various African and South American traditions have their own versions.

The image's appeal is not hard to account for. An egg is an ordinary, observable object from which a complete living creature emerges with nothing visibly added; it is closed, contains everything necessary, and divides cleanly into two halves. It therefore supplies precisely what a cosmogony requires: a way of describing how a differentiated world could come out of an undifferentiated unity without an external maker doing the work.

Its distribution has been used to argue both for diffusion from a common source and for universal patterns of thought. Neither has been established, and the argument from sheer availability, that anyone who has watched an egg hatch has the raw material for the myth, remains a serious explanation for at least part of the pattern.

The motif also carries beyond cosmogony into symbol and practice: the egg as an emblem of resurrection and new life in Christian Easter customs, whose seasonal association predates its Christian use and was absorbed into it; the egg in alchemical imagery as the vessel and the matter of transformation; and the "philosophers' egg" as a piece of alchemical apparatus named for the idea.

Article one treats the world egg as a mythic image of the cosmos emerging from a bounded, self-contained whole. A modern and unrelated coincidence is worth addressing directly, because it circulates as though it were evidence about the myths rather than about a translator's choice of words.

Georges Lemaitre, the Belgian priest and physicist who first proposed in 1931 that the universe originated from the decay of a single, extremely dense "primeval atom," a proposal that became a foundation of what is now called Big Bang cosmology, saw his idea informally described by some contemporaries using egg-like language for the initial concentrated state from which everything expanded. Lemaitre himself was careful, publicly and repeatedly, to keep his physics and his Catholic faith in separate registers, and explicitly rejected readings of his cosmology as scientific confirmation of Genesis.

That has not stopped a recurring popular claim that ancient world-egg cosmogonies "anticipated" modern cosmology, on the strength of the superficial resemblance between a single originating point and a hatching egg. The resemblance is a coincidence of description rather than of content: the mythic egg is generally a plenum already containing a fully formed, if compressed, world waiting to unfold, while the Big Bang model describes matter, space and time themselves coming into existence with no prior container or content at all. Treating the two as versions of one idea mistakes a loose figure of speech, current briefly among some mid-twentieth-century popularisers rather than among cosmologists working the mathematics, for a substantive convergence that the physics does not support.