The History Of Herodotus Volume 1 of 2
Page: 9761. Thus it is done here; and how they celebrate the festival in honour of Isis at the city of Busiris has been told by me before: 60 for, as I said, they beat themselves in mourning after the sacrifice, all of them both men and women, very many myriads of people; but for whom they beat themselves it is not permitted to me by religion to say: and so many as there are of the Carians dwelling in Egypt do this even more than the Egyptians themselves, inasmuch as they cut their foreheads also with knives; and by this it is manifested that they are strangers and not Egyptians.
62. At the times when they gather together at the city of Saïs for their sacrifices, on a certain night 61 they all kindle lamps many in number in the open air round about the houses; now the lamps are saucers full of salt and oil mixed, and the wick floats by itself on the surface, and this burns during the whole night; and to the festival is given the name Lychnocaia (the lighting of the lamps). Moreover those of the Egyptians who have not come to this solemn assembly observe the night of the festival and themselves also light lamps all of them, and thus not in Saïs alone are they lighted, but over all Egypt: and as to the reason why light and honour are allotted to this night, 62 about this there is a sacred story told.
63. To Heliopolis and Buto they go year by year and do sacrifice only: but at Papremis they do sacrifice and worship as elsewhere, and besides that, when the sun begins to go down, while some few of the priests are occupied with the image of the god, the greater number of them stand in the entrance of the temple with wooden clubs, and other persons to the number of more than a thousand men with purpose to perform a vow, these also having all of them staves of wood, stand in a body opposite to those: and the image, which is in a small shrine of wood covered over with gold, they take out on the day before to another sacred building. The few then who have been left about the image, draw a wain with four wheels, which bears the shrine and the image that is within the shrine, and the other priests standing in the gateway try to prevent it from entering, and the men who are under a vow come to the assistance of the god and strike them, while the others defend themselves. 63 Then there comes to be a hard fight with staves, and they break one another's heads, and I am of opinion that many even die of the wounds they receive; the Egyptians however told me that no one died. This solemn assembly the people of the place say that they established for the following reason:—the mother of Ares, they say, used to dwell in this temple, and Ares, having been brought up away from her, when he grew up came thither desiring to visit his mother, and the attendants of his mother's temple, not having seen him before, did not permit him to pass in, but kept him away; and he brought men to help him from another city and handled roughly the attendants of the temple, and entered to visit his mother. Hence, they say, this exchange of blows has become the custom in honour of Ares upon his festival.