Valhalla, in Norse mythology, the banquet hall where the principal god, Odin, played host to the Einherjar, the souls of warriors who had died a courageous death in battle. Valhalla was the largest building in Asgard, the heavenly home of the gods, and it constituted one of Asgard's 12 realms. There the Einherjar feasted while awaiting the final battle of the world, Ragnarok. The Einherjar were brought to Valhalla by Odin's warlike maidens, the Valkyries, who were sent out by Odin to gather the souls of heroes as they fell on the battlefields.
The name Valhalla is derived from the Old Icelandic term Valholl, meaning "hall of the slain." The Norse Vikings were a warrior people, and in their warrior religion, stories of Valhalla played an important role. There was no other "heaven," and warriors who did not die valiantly in battle went to the murky, miserable underworld. And unlike the Christian concept of heaven, Valhalla itself was not a place of eternal reward.
Protecting the entryways of Valhalla were the natural barrier of the roaring river Thund and the barred gate Valgrind. By one account, the hall itself was so large that it had 540 doors, each one so wide that 800 warriors could march through it abreast. Another account places the number of doors at 640, each wide enough to accommodate 960 warriors across.
The enormous hall of Valhalla had rafters made of spears and roof tiles made of shields. Inside the hall, the benches of the long banquet tables were covered with coats of mail. The Valkyries kept bringing more and more slain warriors to the hall, but there was always more than enough food and drink to go around.
In Valhalla, Odin gathered his warrior champions around him each day. At daybreak they would go out, clad in their chain mail, and fight on the Asgard plain to maintain their skill and prepare them for the day they would fight the final battle, Ragnarok. The warriors enjoyed these battles, even when they were wounded or killed in them. After practice those who had been felled would miraculously rise again, ready to resume their fighting again the next morning. Then they all returned to Valhalla for feasting and carousing.
The Valkyries served the food to the Einherjar, and there was always more than enough food in Valhalla. Every morning, the cook Andrimne, or Andhrimnir, prepared a stew from the meat of the boar Saerimne, or Saehrimnir, in the enormous cauldron Eldrimne, or Eldhrimnir. Every evening the boar was whole and alive again and could be cooked again the following day.
There was a great deal of drinking in this warrior "heaven." The Einherjar washed down their meat with ale and sparkling mead. The mead was produced like milk from the udders of the nanny goat Heidrun. This goat stood on the roof of Valhalla, nibbling branches from the tree Laerad, or Laeradr. The prodigious quantities of mead ran from Heidrun down into a vessel so large that everyone had all they could possibly want to drink. Odin himself did not eat, though the one-eyed god sat at the head of the feast with his two ravens, Huginn (Thought) and Muninn (Memory), perched on either shoulder; as the warriors feasted together, the ravens brought him news from the world. Odin's two wolves, Geri (Greddy) and Freki (Fierce), sat at his feet, and Odin gave all his food to them. He drank wine, however, and that provided all the nourishment the god required.
According to legend, this pattern of fighting and feasting would repeat itself until Ragnarok, when the crowing of the cock Gullinkambi (Golden Comb) would signal the beginning of the great battle between the gods and the powers of evil. Then the Einherjar would march out of Valhalla to fight on the side of Odin and the other gods, while their unhappy counterparts in the underworld would have to fight on the side of the monsters and giants