Heimdall (Old Norse Heimdallr, the prefix Heim- means home, the affix -dallr is of uncertain origin) is one of the Æsir (gods) in Norse mythology, called the "whitest of the gods" (ON Hvítastr-Ása). Heimdall is the guardian of the gods and of the link between Midgard and Asgard, the Bifrost Bridge. Legends foretell that he'll sound the Gjallarhorn, alerting the Æsir to the onset of Ragnarök where the world ends and is reborn. Heimdall, as guardian, is described as being… (More on Heimdall)