Vafþrúðnir (Old Norse "mighty weaver") is a wise jötunn in Norse mythology. In the Poetic Edda poem Vafþrúðnismál, Vafþrúðnir acts as both (the disguised) Odin's host and opponent in a deadly battle of wits, resulting in Vafþrúðnir's defeat. In Germanic mythology, was a wise frost giant. He was believed to have gained his impressive store of wisdom by consulting the dead. Possibly like, Odin, the chief of the gods, who voluntarily hanged himself for nine nights on Yggdrasil, the cosmic tree, in order to become wise, Vafthrudnir had also temporarily died. Seeking to test his knowledge against the giant's, Odin decided to journey to Vafthrudnir's land in disguise. There he challenged the gigantic "riddle-master" to match their knowledge of the past, the present and the future. After an impressive display on the part of both Odin and Vafthrudnir, the giant was eventually defeated by a quite unanswerable question, when the god asked the giant what he had whispered to his dead son Balder before he lit the pyre on which he lay. It is implied in the story that Odin's foreknowledge allowed him to assure Balder of future resurrection and worship on the new earth, "risen out of the water, fresh and green", after Ragnarok, the doom of the gods and the end of the world. Now Vafthrudnir recognized Odin and admitted that no one could tell what the god had whispered into the ear of the dead Balder. The frost giant's last words were: "So I have pitted myself against Odin, always the wisest."