I will have to check it out. I thought it was some kind of concentric circle symbol thank you DS
A "7 Step Labyrinth"
It's a labyrinth (different from a maze...mazes are designed to trap, labyrinth's aren't). They're used for meditation.
The symbol is a traditional labyrinth pattern, it is found in many places such as coins from Crete as British and Icelandic turf cut patterns (there is one cut into the hill at Glastonbury tor. it is als a sacred symbol to the Native American Hopi tribe.
The symbol is also used as an initiation tool in traditional witchcraft initiations.