What is this symbol?
I'm wondering if anyone can tell me what the above symbol means (if indeed it means anything) It's two horizontal and two vertical lines like the grid in Naughts & Crosses or Tick Tack Toe. I did read somewhere that it is the symbol of Apollo but I'm not sure.
Is it Celtic, Pagan, Wiccan, Heraldic, Christian. Hope someone can help as it's part of an ongoing mystery in my sisters (very modern) house.