This rune is known as vegvisir, Icelandic for "guidepost" & sometimes referred to as the Viking Compass. The purpose of this magical charm is to help guide one's way without getting lost. This is surrounded by all 24 characters of the Elder Futhark.
The Viking Runes. The eldest runestones, inscribed with Norse runes, date from the century. These were the Elder Futhark runes. However, the most of the runestones were created during the late Viking Age and thus inscribed with theYounger Futhark runes.
Yggdrasil In Norse mythology, Yggdrasil (pron. from Old Norse Yggdrasill, pronounced [ˈyɡːˌdrasilː]) is an immense tree that is central in Norse cosmology, in connection to which the nine worlds exist.