There seems to be no reason to doubt the historical character of all of them, though myths have gathered like clouds round the persons of Nyakang and his immediate successors. The Shilluk about Kodok (Fashoda) think of Nyakang as having been a man in appearance and physical qualities, though unlike his royal descendants of more recent times he did not die but simply disappeared. His holiness is manifested especially by his relation to Jŭok, the great god of the Shilluk, who created man and is responsible for the order of nature. Jŭok is formless and invisible and like the air he is everywhere at once. He is far above Nyakang and men alike, but he is not worshipped directly, and it is only through the intercession of Nyakang, whose favour the Shilluk secure by means of sacrifices, that Jŭok can be induced to send the needed rain for the cattle and the crops.(49) In his character of rain-giver Nyakang is the great benefactor of the Shilluk. Their country, baked by the burning heat of the tropical sun, depends entirely for its fertility on the waters of heaven, for the people do not resort to artificial irrigation. When the rain falls, then the grass sprouts, the millet grows, the cattle thrive, and the people have food to eat. Drought brings famine and death in its train.(50) Nyakang is said not only to have brought the Shilluk into their present land, but to have made them into a nation of warriors, divided the country among them, regulated marriage, and made the laws.(51) The religion of the Shilluk at the present time consists mainly of the worship paid to this semi-divine hero, the traditionary ancestor of their kings. There seems to be no reason to doubt that the traditions concerning him are substantially correct; in all probability he was simply a man whom the superstition of his fellows in his own and subsequent ages has raised to the rank of a deity.(52) No less than ten shrines are dedicated to his worship; the three most famous are at Fashoda, Akurwa, and Fenikang. They consist of one or more huts enclosed by a fence; generally there are several huts within the enclosure, one or more of them being occupied by the guardians of the shrine. These guardians are old men, who not only keep the hallowed spot scrupulously clean, but also act as priests, killing the sacrificial victims which are brought to the shrine, sharing their flesh, and taking the skins for themselves. All the shrines of Nyakang are called graves of Nyakang (_kengo Nyakang_), though it is well known that nobody is buried there.(53) Sacred spears are kept in all of them and are used to slaughter the victims offered in sacrifice at the shrines. The originals of these spears are said to have belonged to Nyakang and his companions, but they have disappeared and been replaced by others.