When the meat is cooked, it is eaten by the elders, who each drink a horn of beer. The fat of the ram is [[45]]boiled down in the cooking pot provided for the purpose, and one of the elders climbs into the sacred tree, and pours the liquid fat on to the main stem of the tree. The breast of the ram is often cut out and also hung up in the tree. Cf. [Exodus xxix. 26]: “And thou shalt take the breast of the ram and wave it for a wave offering before the Lord.” The bones of the portion of the sacrificial ram eaten by the elders are each broken into two parts and placed at the foot of the tree, the marrow not being extracted. Not a single piece of the meat may be taken back to the villages. The elders then retire some little distance away and chant as follows: “Tathai Engai mwangi utue mbura”—“We Mwangi elders pray God to give us rain.”
If, of course, the sacrifice is for another object the prayer is varied. After the prayer no man must look back at the tree. Each man returns to his village. Next morning the principal wife of each elder goes to the tree and deposits at its foot offerings of uncooked bananas and various kinds of grain.
If, however, they notice that the sacrificial meat is untouched they do not deposit their offerings, but retire to some distance and call out to their husbands, telling them that Engai has refused the sacrifice. The elders assemble and send the women back with their offerings. They then select another elder and direct him to provide a fresh ram, which is sacrificed as before. They pray to Engai and beg him not to refuse their sacrifice a second time, as they have brought a fatter sheep. Their exhortation is: “Tiga Engai kutumbia”—“Beg God not to refuse.”
The women come again on the following morning, and, if the meat is eaten, they leave their offerings and return to their villages, chanting a pæan of joy as they go. The chant is called Ngemi, and is a form of what is usually known as “ululuing.”
They sacrifice at the sacred trees to invoke rain, and they also sacrifice to check the progress of an epidemic, when they say: “Kurinda murimo utikaoki [[46]]muji”—“To stop the sickness that it may not come to the village.”
They sacrifice and pray for relief from famine: “Kuoya mugumuini ng͠naragu ithire”—“To pray at the mugumu tree that the hunger may finish.”
Here again a ram is sacrificed, but before the animal is killed an important magician pours medicine into its mouth, and also squirts beer from his own mouth into that of the ram.
Unlike other tribes, they neither shave their heads nor deposit offerings of hair at the sacred tree. It is said that sometimes lights are seen at night in a sacred tree, and the following day they hasten to sacrifice there. Every season, when the maize is just coming up, the elders summon the important medicine men to go with them to the sacred tree to sacrifice. One of the magicians pours medicine into the mouth of the sacrificial ram before it is killed, and also pours it on the fire on which the meat is roasted. The bones of the animal are then burnt in the fire. These are supposed to be burnt so that the smoke may ascend into the sacred tree and be pleasing to the deity. “It is a burnt offering to the Lord: it is sweet savour an offering made by fire unto the Lord” ([Exodus xxix. 18]).
The blood is caught in a half gourd, njeli or kinga, and then placed in an ox horn; one half is poured at the foot of the sacred tree, the other half being mixed with tiny pieces of intestinal fat and placed in the large intestine of the sacrificial ram. This is roasted over the fire and eaten by the senior elders of ukuru. The mixture is called ndundiru.
Near the time of the harvest, when the crops are ripe, but before they are cut, the elders take a ram to the sacred place and slaughter it. They pour the blood at the foot of the tree and pray: “Engai twaoka kukui enyama tutikarware enda twa getha iriu wega”—“O God we have to bring meat so that we may not get ill, for we have good crops and are glad.”