At the end of the rainbow bridge Bifröst, where the world of humans meets the realm of the gods, stands a sentinel. He needs less sleep than a bird. He can see a hundred leagues by night as well as by day. He can hear the grass growing in the fields and the wool growing on sheep. His name is Heimdall (Old Norse Heimdallr), the “white god,” the watchman of the Aesir, and he waits for the day when he will lift his great horn to his lips and blow the blast that announces the end of the world.
Heimdall is one of the most mysterious of the Norse gods. The surviving myths about him are fragmentary, and some were already obscure to Snorri Sturluson when he wrote the Prose Edda in the thirteenth century. Yet the fragments point to a figure of great importance: a guardian of boundaries, a father of humankind, and the eternal opponent of Loki.
Born of Nine Mothers
The strangest thing about Heimdall is his birth. Snorri, quoting a lost poem called Heimdalargaldr (“The Incantation of Heimdall”), says that he was “born of nine mothers, all sisters.” The Hyndluljóð in the Poetic Edda lists them by name — Gjálp, Greip, Eistla, Eyrgjafa, Ulfrún, Angeyja, Imðr, Atla, and Járnsaxa — and adds that he was nourished with “the strength of the earth, the ice-cold sea, and the blood of swine.”
Many scholars identify the nine mothers with the nine daughters of the sea-giant Ægir and his wife Rán, who personify the waves. If so, Heimdall was born of the sea, perhaps at the edge of the world where the land meets the ocean — appropriate for a god of boundaries. His father is usually said to be Odin.
Guardian of Bifröst
Heimdall’s dwelling is Himinbjörg, “heaven’s cliffs,” which stands at the end of Bifröst where it reaches Asgard. Bifröst is the bridge between Midgard and Asgard, which humans see as the rainbow. Snorri says its red band is burning fire, placed there to keep the frost giants and mountain giants from crossing it.
Heimdall’s task is to guard the bridge against the giants. In the Grímnismál, Odin says that in Himinbjörg “the warden of the gods drinks good mead gladly in the peaceful hall.”
His Powers and Possessions
Snorri’s description of Heimdall is a list of astonishing attributes:
- He needs less sleep than a bird.
- He can see a hundred leagues, by night as well as by day.
- He can hear grass growing on the earth and wool growing on sheep, “and everything that makes more sound than that.”
- His teeth are made of gold, and he is sometimes called Gullintanni, “golden-toothed.”
- His horse is Gulltoppr, “golden-top.”
- He is called the whitest of the gods (hvítastr ása).
- He carries the horn Gjallarhorn, “the resounding horn,” whose blast can be heard throughout all the worlds.
The Gjallarhorn is kept, according to one reading of the Völuspá, beneath the world-tree Yggdrasil, perhaps at Mimir’s well. At Ragnarök, Heimdall will raise it and blow, waking the gods to their final battle.
Rígr: The Father of Humanity
The Eddic poem Rígsþula (“The List of Rígr”) tells how a god calling himself Rígr travelled through the world and fathered the three classes of human society. A prose introduction identifies Rígr as Heimdall. The Völuspá opens with a call to “the holy races, greater and lesser, the children of Heimdall” — that is, all humankind.
In the poem, Rígr visits three households: a poor couple in a hut, a prosperous farming couple in a hall, and a noble couple in a mansion. In each he sleeps between husband and wife for three nights. Nine months later, three sons are born: Thrall, ancestor of the slaves; Karl, ancestor of the free farmers; and Jarl, ancestor of the nobles. The full story is told in Heimdall and the Rígsþula: How the Classes of Mankind Began.
Heimdall and Loki
Heimdall and Loki are ancient enemies. Snorri refers to a lost myth in which they fought in the form of seals over the necklace Brísingamen, which Loki had stolen from Freya. The fight took place at a rock called Singasteinn, far out at sea, and Heimdall won back the necklace. A tenth-century skaldic poem, Húsdrápa, described this fight as carved on the walls of an Icelandic hall. (See Brísingamen: The Necklace of Freya.)
In the Lokasenna, when Loki insults the gods at Ægir’s feast, Heimdall tells him he is drunk and witless. Loki mocks Heimdall’s job in return: “You were given a hateful life… with a muddy back you must always be, and keep watch as the gods’ guardian.”
At Ragnarök, the two will face each other at last, and each will kill the other.
Heimdall in Thrymskvida
In the comic Eddic poem Þrymskviða, when the giant Thrym steals Thor’s hammer and demands Freya as his bride in exchange, it is Heimdall — “the whitest of the gods,” who “saw into the future like the Vanir” — who suggests the solution: dress Thor as the bride and send him to the wedding. The plan works, and Thor wins back his hammer (see Thor in a Wedding Dress).
This detail, that Heimdall “foresaw well like the other Vanir,” has led some scholars to suggest that he was originally one of the Vanir, the older fertility gods, rather than the Aesir.
Heimdall’s Sword and Head
Snorri records two cryptic facts: Heimdall’s sword is called Höfuð, “head,” and a man’s head is called “Heimdall’s sword” in poetry. Another poetic phrase called a sword “Heimdall’s head.” Snorri admits that the story behind this — a lost myth in which Heimdall was killed or struck by a man’s head — was known in a poem called Heimdalargaldr, but he does not tell it.
Such obscurities show how much of Norse mythology has been lost. Heimdall was clearly the subject of a rich body of myth, of which only glimpses survive.
At Ragnarök
When the signs of the end appear, Heimdall stands up and blows a great blast on the Gjallarhorn. The Völuspá says: “Loud blows Heimdall, the horn is aloft.” All the gods wake and hold council. Odin rides to Mimir’s well for counsel. Then the gods arm themselves and ride out to the plain of Vígríðr.
There Heimdall fights Loki, and they kill each other. See Ragnarök: The Twilight of the Gods.
Interpretations
What was Heimdall originally? Scholars have offered many theories:
- A god of light or the dawn, because of his whiteness and his watchfulness.
- A god of the rainbow, as the guardian of Bifröst.
- A personification of the world-tree or its guardian, because of his link to the horn kept beneath Yggdrasil.
- A ram-god. One of his names, Hallinskíði, is also a poetic word for a ram, and the horn might originally have been a ram’s horn.
- A god of boundaries and beginnings, standing at the threshold between worlds and at the start of human society.
Whatever his origins, Heimdall’s role in the surviving myths is clear. He is the one who watches while the others feast, who hears the smallest sound, who guards the bridge — and who will give the warning when the end comes.
Heimdall Today
In Marvel’s Thor comics and films, Heimdall is the golden-eyed guardian of the Bifrost, portrayed by Idris Elba. He also appears in the God of War video games. In modern Heathenry, he is honoured as a protector and a god of vigilance.
Last reviewed: September 2026.