The period of gestation in the mare is about eleven months.
The female brings forth one young in the end of May or beginning of June, after a gestation of nine months.
In the first the novice is received and told to meditate on the three mystic letters; in the second, after a period of forty days, he is taught the titles of the 16 suras of the Majmu`; in the third, after seven or nine months (intended to correspond with the ordinary period of gestation), he is taught Suras 5, 6 and 9, learns the meaning of the three mystic letters and goes through a further period of instruction from his initiator.
The period of gestation is twenty weeks, when the female, beneath the shelter generally of a projecting rock, produces one and sometimes two young.
"Without any religious rite at all," he urges, "unclean spirits brood upon waters, aspiring to repeat that primordial gestation of the divine Spirit."