Odin is a god of war and death, but also the god of poetry and wisdom. He hung for nine days, pierced by his own spear, on the world tree. Here he learned nine powerful songs, and eighteen runes. Odin can make the dead speak to question the wisest amongst them. His hall in Asgard is Valaskjalf ("shelf of the slain") where his throne Hlidskjalf is located. From this throne he observes all that happens in the nine worlds. The tidings are brought to him by his two raven Huginn and Muninn. He also resides in Valhalla, where the slain warriors are taken.