Valhalla Einherjar - Idavoll Field
In Norse religion the einherjar were spirits of warriors who had died bravely in battle. The name is Old Norse for "one-army-ers." It is often interpreted as "outstanding fighter", but might also signify "those who are all [now] in one army", because when alive on earth they were in many armies and bands, but now they are all in the Army of the Dead.
After they die, the valkyries escort half of the slain from the battlefield to Valhalla (the einherjar), which is part of Asgard (commonly described as the "Norse Heaven"); the other half went to Fólkvangr (Freyja's hall). Valhalla, Hall of the Slain, in Norse mythology is the hall presided over by Odin. This vast hall has five hundred and forty doors. The rafters are spears, the hall is roofed with shields, and breast-plates litter the benches. A wolf guards the western door and an eagle hovers over it.
Every day the Einherjar are awakened by Gullinkambi, a rooster, and march out to the great field of Idavoll in the heart of Asgard to fight against each other in merry (and mortal) combat. At dusk, when they are all cut to pieces, save but a few, they are miraculously healed, and march back into Valhalla, where Andhrímnir, the cook of the gods, has prepared a meal for them from the pork of Saehrimnir, a pig that is reborn every day, and the mead milked from Heiorun, a goat feeding on the leaves of Yggdrasil. The einherjar then spend the evening and night in feast, served by lovely valkyries, until they all fall asleep, solidly drunk. And yet, they never experience hangovers or other mishaps from this daily inebriation.