It is probable that the same dread of strangers, rather than any desire to do them honour, is the motive of certain ceremonies which are sometimes observed at their reception, but of which the intention is not directly stated. In the Ongtong Java Islands, which are inhabited by Polynesians, the priests or sorcerers seem to wield great influence. Their main business is to summon or exorcise spirits for the purpose of averting or dispelling sickness, and of procuring favourable winds, a good catch of fish, and so on. When strangers land on the islands, they are first of all received by the sorcerers, sprinkled with water, anointed with oil, and girt with dried pandanus leaves. At the same time sand and water are freely thrown about in all directions, and the newcomer and his boat are wiped with green leaves. After this ceremony the strangers are introduced by the sorcerers to the chief. In Afghanistan and in some parts of Persia the traveller, before he enters a village, is frequently received with a sacrifice of animal life or food, or of fire and incense. The Afghan Boundary Mission, in passing by villages in Afghanistan, was often met with fire and incense. Sometimes a tray of lighted embers is thrown under the hoofs of the traveller's horse, with the words, "You are welcome." On entering a village in Central Africa Emin Pasha was received with the sacrifice of two goats; their blood was sprinkled on the path and the chief stepped over the blood to greet Emin. Sometimes the dread of strangers and their magic is too great to allow of their reception on any terms. Thus when Speke arrived at a certain village, the natives shut their doors against him, "because they had never before seen a white man nor the tin boxes that the men were carrying: 'Who knows,' they said, 'but that these very boxes are the plundering Watuta transformed and come to kill us? You cannot be admitted.' No persuasion could avail with them, and the party had to proceed to the next village."