In Norse mythology, Bifröst (or sometimes Bilröst or Bivrost) is a burning rainbow bridge that reaches between Midgard (Earth) and Asgard, the realm of the Gods. The bridge is attested as Bilröst in the Poetic Edda; compiled in the 13th century from earlier traditional sources, and as Bifröst in the Prose Edda; written in the 13th century by Snorri Sturluson, and in the poetry of Skalds. Both the Poetic Edda and the Prose Edda alternately refer to the bridge as Ásbrú (Old Norse "Æsir's bridge"). According to the Prose Edda, the bridge ends in heaven at Himinbjörg, the residence of the God Heimdallr, who guards it from the Jötnar. The bridge's destruction during Ragnarök by the forces of Muspell is foretold. Scholars have proposed that the bridge may have originally represented the Milky Way and have noted parallels between the bridge and another bridge in Norse mythology, Gjallarbrú. The bridge is mentioned in the Prose Edda books Gylfaginning and Skáldskaparmál, where it is referred to as Bifröst. In chapter 13 of Gylfaginning, Gangleri (King Gylfi in disguise) asks the enthroned figure of High what way exists between heaven and earth. Laughing, High replies that the question isn't an intelligent one, and goes on to explain that the Gods built a bridge from heaven and earth. He incredulously asks Gangleri if he has not heard the story before. High says that Gangleri must have seen it, and notes that Gangleri may call it a rainbow. High says that the bridge consists of three colors, has great strength, "and is built with art and skill to a greater extent than other constructions." High notes that, although the bridge is strong, it will break when "Muspell's lads" attempt to cross it, and their horses will have to make do with swimming over "great rivers." Gangleri says that it doesn't seem that the Gods "built the bridge in good faith if it is liable to break, considering that they can do as they please." High responds that the Gods do not deserve blame for the breaking of the bridge, for "there is nothing in this world that will be secure when Muspell's sons attack." In chapter 15 of Gylfaginning, Just-As-High says that Bifröst is also called Asbrú, and that every day the Gods ride their horses across it (with the exception of Thor, who instead wades through the boiling waters of the rivers Körmt and Örmt) to reach Urðarbrunnr, a holy well where the gods have their court. As a reference, Just-As-High quotes the second of the two stanzas in Grímnismál that mention the bridge (see above). Gangleri asks if fire burns over Bifröst. High says that the red in the bridge is burning fire, and, without it, the frost Jötnar and mountain Jötnar would "go up into heaven" if anyone who wanted could cross Bifröst. High adds that, in heaven, "there are many beautiful places" and that "everywhere there has divine protection around it." In chapter 17, High tells Gangleri that the location of Himinbjörg "stands at the edge of heaven where Bifrost reaches heaven." While describing the god Heimdallr in chapter 27, High says that Heimdallr lives in Himinbjörg by Bifröst, and guards the bridge from mountain Jötnar while sitting at the edge of heaven. In chapter 34, High quotes the first of the two Grímnismál stanzas that mention the bridge. In chapter 51, High foretells the events of Ragnarök. High says that, during Ragnarök, the sky will split open, and from the split will ride forth the "sons of Muspell". When the "sons of Muspell" ride over Bifröst it will break, "as was said above." [Source CC Wikipedia]
This will be a brief summation on the Bifröst Bridge. It was a Bridge. No but seriously, it was the archway that connected the land of the mortals and Asgard. Consructed by imbuing light photons into the structure, it emmanated various colors and was strong enough for the mortals but not enough for Jötunn, especially frost Jötunn / Giants. The only Giants known to be able to cross it due to their natural fire attunement are those of the ones of Muspelheim, the land of the Fire Giants ruled by Surtr, which share similar elemental attunement as the Asgardians, but with less heart / water element. I believe these are the Biblical Amalekite lineages. The reason they share similar attunement is because, Amalek, Canaanite from Esau's clan or Evil Elven married Tilma who was from the line of the Horites / Horus / Odin which were hiding behind the scenes in Germany plotting their revenge. So during Ragnarok, it is them who will lead the attack against Asgard, and the Bifröst Bridge leading to it's destruction, which sounds about right after I saw the current state of Germany and Greece after the Evil Elven were done with it. They infect and destroy everything they come into contact with. Most of Europe and the West are currently under attack by the Evil Elven lineages of the Canaanites and Amalekites currently that are plotting the destruction of the 'Light' by wiping out all those with Alpha blood type.