Know your Vegvisirs. I was drawing these, wondered why the different versions around the place. Nobody can figure out what Björks tattoo actually is, a Galdrabók one roughly done most likely vegvisir symbol
"Spegilmynd" - Mirrors the negative impulses sent against yourself, and reflects them to the sender. The sigil will work advantageous on a amulet , deposited in a black bowl with water on a black mirror, or in a bucket of water, and then put by your bed.