In Norse mythology, the Hliðskjálf (literally meaning the high seat with an expansive view) allowed Odin to see into all realms as well as listen to them.[1]
Although not explicit in any surviving source, there may be a connection between Hliðskjálf and the art of seiðr, a type of magic said to be practiced by Odin that was often performed from a high, raised platform called a seiðhjallr. The works of Rudolf Simek suggest that Hliðskjálf could be the model that actual seiðhjallr platforms attempted to emulate.[2]