Voodoo - My friend and I found a symbol on her wood floor. It just appeared. To whom can I show it..

If you live in Louisiana, show it to a fortune teller in the French Quarter, or bring it to any Voodoo shop in the city area. Even a museum might be able to tell you something, especially if it's an old house like the one city home that was owned by a woman who killed over 300 slaves.