Bifröst

• 1. Etymological Origins And Meanings

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  Scholar Andy Orchard suggests that the Old Norse word Bifröst means shimmering path. He notes that the first element of the compound word suggests a fleeting nature like a moment. This connects to the Old Norse verb meaning to shimmer or to shake. The element evokes notions of the lustrous sheen of the bridge itself. Austrian Germanist Rudolf Simek offers a different interpretation. He says the term might mean the swaying road to heaven. Alternatively he argues it could be the fleetingly glimpsed rainbow. Simek believes this form is likely connected to words meaning weak point or moment.

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• 2. Primary Mythological Attestations

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  Two poems in the Poetic Edda and two books in the Prose Edda provide information about the bridge. In the poem Grímnismál the god Odin in disguise provides cosmological knowledge to Agnarr. He states that Bilröst is the best of bridges. Later in the same poem Grímnir notes that Asbrú burns all with flames. Every day the god Thor wades through the waters of rivers named Körmt and Örmt. A dying wyrm Fafnir tells the hero Sigurd that gods will meet at Óskópnir during Ragnarök. They will cross Bilröst which breaks apart as they cross over it. Their horses must then dredge through an immense river. The Prose Edda written by Snorri Sturluson in the 13th century describes the construction differently. Gangleri asks High what way exists between heaven and earth. High replies that the gods built a bridge from heaven and earth. He notes that the bridge consists of three colors and has great strength.

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• 3. Guardianship And Cosmic Function

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  The bridge ends in heaven at Himinbjörg the residence of the god Heimdall. He guards it from the jötnar while sitting at the edge of heaven. Every day the gods ride their horses across it to reach Urðarbrunnr. This holy well serves as the court where the gods hold their meetings. Thor does not ride across the bridge like the others. Instead he wades through the boiling waters of the rivers Körmt and Örmt. High explains that fire burns over Bifröst to keep frost jotnar and mountain jotnar out. Without this red burning fire anyone who wanted could cross into heaven. In chapter 17 of Gylfaginning High tells Gangleri that Himinbjörg stands at the edge of heaven where Bifrost reaches. A work by the 10th century skald Úlfr Uggason refers to Bifröst as the powers' way. The location remains secure only because divine protection surrounds every beautiful place within it.

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• 4. Ragnarök And Apocalyptic Destruction

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  High foretells the events of Ragnarök during chapter 51 of Gylfaginning. The sky will split open and from the split will ride forth the sons of Muspell. When these forces ride over Bifröst it will break as was said above. Their horses will have to make do with swimming over great rivers. Gangleri asks if the gods built the bridge in good faith if it is liable to break. High responds that there is nothing in this world that will be secure when Muspell's sons attack. John Lindow points to a parallel between Bifröst and another bridge called Gjallarbrú. This second bridge connects earth to the underworld or the world of the dead. Henry Adams Bellows comments that the stanza may mean Thor has to go on foot in the last days of destruction. Another interpretation suggests the rainbow-bridge becomes hot in the sun when Thor leaves the heavens.

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• 5. Astronomical And Natural Theories

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  Several scholars have proposed that Bifröst may represent the Milky Way. It fits better with notions of it being fiery and having three colors than a standard rainbow form. A rainbow is very distinct and well-known but stable and not fiery. Rainbows always display more numerous colors in the same order. They appear to arch back and return to the land rather than ending in the heavens. The Aurora Borealis fits better with the notion of fire and three colors. The sky splitting open during Ragnarök mirrors the visual spectacle of natural light shows. Scholars note parallels between the bridge and other phenomena like the Milky Way. These theories attempt to explain why the ancient poets described such specific characteristics for the structure.

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• 6. Modern Cultural Adaptations

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  In the final scene of Richard Wagner's 1869 opera Das Rheingold the god Froh summons a rainbow bridge. Gods cross over this bridge to enter Valhalla. J.R.R. Tolkien included a level bridge in his early version of the Akallabêth known as The Fall of Númenor. This allows immortal Elves but not mortal Men to travel the Old Straight Road to Valinor after the world has been remade. Bifröst appears in comic books associated with the Marvel Comics character Thor. In the Marvel Cinematic Universe film Thor Jane Foster describes the Bifröst as an Einstein, Rosen bridge. It functions as a means of transportation across space in a short period of time. The Rainbow Bridge is often invoked in contemporary culture when referencing a recently deceased pet. These adaptations reinterpret the ancient myth for opera literature and film audiences.

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