This octagram is relatively important in Semitic history, moreso in the Arabian and Islamic world, called an Islamic Square, or Rub Al Hizb (sometimes its used by jews too though, moreso in israel)
It's sometimes even used as a symbol of Islam, so if that's a problem for you be wary kek
It's also had alot of intersection with Christianity, due to the crusades and jihads in Spain and Constantinople-Istanbul, way back when frequently used as a motif in churches/mosques
It also exists in some more paganistic direction, but I'm no expert, I'm particularly infatuated with it though.