The Weeping of the Sisters
After Osiris was killed, Isis and Nephthys took the form of two kites, searching, mourning, and keeping vigil across Egypt. Their weeping became the archetype of the "two mourners" rite at Egyptian funerals — two women would play Isis and Nephthys and wail for the departed. The two ends of coffins are often carved with this pair of winged sister goddesses, guarding the dead between them. What Nephthys taught the Egyptians is this: mourning is itself sacred, and to weep for the dead is something a goddess has done, worth doing with all solemnity.