The Helm of Awe is one of the most powerful protective Viking symbols used not only for the purpose of protection from disease, but even to encourage all people who might suffer from depression or anxiety.
In Norse myths it is said that the Helm of Awe symbol was worn between the eyes to cause fear in your enemies, and to protect against the abuse of power. The Norse word for this very important symbol (Ægishjálmr or Aegishjalmur) is translated in English “helm of awe” or “helm of terror.” The meaning of the name awe is to strike with fear and reverence; to influence by fear, terror or respect; as, his majesty awed them into silence.
Mark Beré Peterson: Hauntings, Urban Legends, History, Folklore, Mythology and Witchcraft 