The dwelling in heaven of the Aesir or gods is called Asgard. In its middle was the field of Ida, the gathering-place of the gods, with Odin's throne, Lidskialv, from which he views the whole world. Odin is the highest and the oldest of the gods, and all the others honor him as their father. Odin's hall is Valhalla. The ceiling of this hall is made of spears, it is covered with shields, and its benches are ornamented with coats of mail. To this place Odin invites all who have fallen in battle, and he is therefore called Valfather, _i.e._, the father of the fallen. The invited fallen heroes are called Einherier; their sport and pastime is to go out every day and fight and kill each other; but toward evening they awake to life again and ride home as friends to Valhalla, where they feast on pork of the barrow Saerimmer, and where Odin's maidens, the Valkyrias, fill their horns with mead. These Valkyrias were sent by Odin to all battles on earth, where they selected those who were to be slain and afterward become the honored guests at Valhalla. At Odin's side sit the two wolves, Gere and Freke, and on his shoulders the ravens, Hugin and Munin. These ravens fly forth every morning and return with tidings from all parts of the world. Odin's horse is the swift, gray, eight-footed Sleipner. When he rides to battle he wears a golden helmet, a beautiful coat of mail, and carries the spear Gungner, which never fails. Odin is also the god of wisdom and poesy; in the morning of time he deposited one of his eyes in pledge for a drink of Mimer's fountain of wisdom, and he drank Suttung's mead in order to gain the gift of poesy. He has also taught men the art of writing Runes and all secret arts. Thor, the son of Odin, is the strongest of all the gods. His dwelling is called Thrudvang. He rides across the heavens in a cart drawn by two rams. He is always at war with the Yotuns or evil giants, and in battle with them he uses his great hammer, Mjolner, which he hurls at the heads of his enemies. The earth trembles under the wheels of his cart, and men call the noise thunder. Thor's wife is Sif, whose hair is of gold. Balder is a son of Odin and Frigg. He is so fair that his countenance emits beams of brightness. He is wise and gentle, and is therefore loved by all. His dwelling is Breidablik, where nothing impure exists. Nanna is his wife. Njord comes from the race of the wise Vanir. He rules the wind, can calm the seas and stop fire, and he distributes wealth among men. His aid is invoked for success in navigation and fishing. His wife is Skade, daughter of a Yotun, and his dwelling is Noatun by the sea.