This "design is a combination of symbols of the Norse Father-God, Odin.
The center is the "Valknut," three interlocking triangles that known as the "Knot of the Fallen Warrior." However, Odin is not a God of War, but a God of Inspiration. He bestowed an inspiration to fight. He is a God of Magic, Consciousness, and the Arts.
The runes in the top border are "Man" and "Yr," Life and Death respectively. In the center is the Tyr, or Warrior Rune. This imparts Eternal Life through Reincarnation, and eliminates fear of Death.
The runes along the bottom border spell "Valhal" -the Hall of the Slain, the Nordic Heaven. The rune at the apex of the pyramid is 'Odal,' signifying the Magical Enclosure, which contains Protective Energies. It is said that as "berserkers" lay dying they would carve these runes on their breasts as a last gesture to Odin.
In the Northern Tradition, our "plane of existence" is referred to as "the “battlefield." Many Norse legends refer not to the mindless bloody slaughters but are talking about the journey of Consciousness through Life, transcending the Ego, and mastering ones Will.
The symbol on the back is three interlocked drinking horns. The top border contains runes, which mean the Gift of Consciousness, the Cosmic Breath, and the Power of Creativity through Word and Song. Making this design a wonderful Amulet for Poets Writers and Singers.
The Gar rune in the center is symbolic of "Gungnir," Odin's Magical Spear.
This pendant brings a reopening of the Spiritual Life, Inspiration to achieve Victory over things and the ego. It renews Courage, Wholeness, and the Divine Energies. We are droplets of God and an Essential part of The All. May these Magical Runes Empower and Protect.