Death is thus the separation of the double from the body; but if it may return, its return is not always a matter of rejoicing, for we find customs that are plainly intended to prevent the ghost recognizing the living or to find its way back to its old haunts. Thus Frazer has shown that the wearing of black is really a form of disguise. It is a method taken to disguise the living from the attentions of the dead. It is in order to avoid recognition by spirits who wish to injure them that the Tongans change their war costume at every battle. The Chinese call their best beloved children by worthless names in order to delude evil spirits. In Egypt, too, the children who were most thought of were the worst clad. In some places the corpse is never carried out through the door, but by a hole in the side of the hut, which is afterwards closed so that the ghost may not find its way back. The ghost being conceived as at all points identical with living beings, it demands attention after death. It needs food, weapons, servants, wives. In this way there originates a whole group of burial customs, performed partly from fear of what the ghost may do if its wants are neglected. The custom of burying food and weapons with the dead thus receives a simple explanation. These things are buried with the dead man in order that their spirit may accompany his to the next world and serve the same uses there that they did here. The modern custom of scattering flowers over a grave is unquestionably a survival of this primitive belief. The killing of a wife on the husband's grave has the same origin. Her spirit goes to attend the husband in the ghost-land. In the case of a chief we have the killing of servants for the same reason. When Leonidas says, "Bury me on my shield, I will enter even Hades as a Lacedaemonian," he was exhibiting the persistence of this belief in classical times. The Chinese offer a further example by making little paper houses, filling them with paper models of the things used by the dead person, and burning them on the grave. All over the world we have the same class of customs developing from the same beliefs, and the same beliefs projected by the human mind when brought face to face with the same class of phenomena.