They believe that Christ will come to govern the world, but that after him Sheikh Medi will appear, to whom will be given special jurisdiction over those speaking the Kurdish language, including the Yezidis (this is evidently a modern interpolation, derived from Mussulman sources, perhaps invented to conciliate the Mohammedans). All who go to heaven must first pass an expiatory period in hell, but no one will be punished eternally. Mohammedans they exclude from all future life, but not Christians. (This may have been said to avoid giving offence.) The Yezidis will not receive converts to their faith; circumcision is optional. When a child is born near enough to the tomb of Sheikh Adi, to be taken there without great inconvenience or danger, it should be baptized as early as possible after birth. The Cawals in their periodical visitations carry a bottle or skin filled with the holy water, to baptize those children who cannot be brought to the shrine. There are forty days fast in the spring of the year, but they are observed by few; one person in a family may fast for the rest.[30] They should abstain during that period as completely as the Chaldæans from animal food. Sheikh Nasr fasts rigidly for one month in the year, eating only once in twenty-four hours and immediately after sunset. Only one wife is strictly lawful, although the chief takes more; but concubines are not forbidden. The wife may be turned away for great misconduct, and the husband, with the consent of the Sheikhs, may marry again; but the discarded wife never can. Even such divorces ought only to be given in cases of adultery; for formerly, when the Yezidis administered their own temporal laws, the wife was punished with death, and the husband of course was then released. The religious, as well as the political, head of all Yezidis, wherever they may reside, is Hussein Bey, who is called the Kalifa, and he holds this position by inheritance. As he is young and inexperienced, he deputes his religious duties to Sheikh Nasr. Sheikh Nasr is only the chief of the Sheikhs of the district of Sheikhan. The Cawals are all of one family, and are under the orders of Hussein Bey, who sends them periodically to collect the voluntary contributions of the various tribes. The amount received by them is divided into two equal parts, one of which goes to the support of the tomb of Sheikh Adi, and half of the other to Hussein Bey, the remainder being equally shared by the Cawals. Neither the priests nor Hussein Bey ever shave their beards. They ought not to marry out of their own order, and though the men do not observe this rule very strictly, the women are never given in marriage to one out of the rank of the priesthood. Hussein Bey ought to take his wife from the family of Chul Beg. After death, the body of a Yezidi, like that of a Mohammedan, is washed in running water, and then buried with the face turned towards the north star.