The Bifrost is a bridge that connects the different realms of the underworld. In some cases it is a teleport.
In Norse mythology, Bifröst is a burning rainbow bridge that reaches between Midgard (the world) and Asgard, the realm of the gods. 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 at 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.
- 5.01 Like Hell Pt.1