It’s the kind of protective, talismanic object. I like to think someone like Gandalf or Patti Smith would wear it, imbuing it with intent and power, as in the dictionary definition:
“a stone, ring, or other object, engraved with figures or characters supposed to possess occult powers and worn as an amulet or charm.”
Can objects created with thought and right intention protect us? It makes sense to me, in a kind of an oblique, witchy way, that energy can be conducted via objects–especially those composed of unalloyed metals or stones–and create their own orb-like “aura,” or whatever the better, less New Age-y word for that is. I hope so, anyway. There’s a lot that I can’t see, but it’s there anyway. Like air. Or sound waves.