With the Rose Cross Lamen, the rayed cross is one of the main symbols of the Hermetic Order of the Golden Dawn, a nineteenth century occult society. The symbol is a kabbalistic emblem (as well as a reversed seal of Jupiter).
The upper cross represents the inner order of the organization, as well as the three supernal sefiroth of the Tree of life; the lower triangle represents the outer order, and the three central sefiroth. The rising sun within the triangle represents the sefirot Tiphareth, resurrection and rebirth, shining in the underworld. The imagery employed was inspired by renaissance-era symbolism of the blood of Christ entering Golgotha (“the place of the skull”), representing the “Harrowing of Hell” and the redemption of the dead.