(M10) Of the taboos imposed on priests we may see a striking example in the rules of life prescribed for the Flamen Dialis at Rome, who has been interpreted as a living image of Jupiter, or a human embodiment of the sky-spirit.(39) They were such as the following:—The Flamen Dialis might not ride or even touch a horse, nor see an army under arms,(40) nor wear a ring which was not broken, nor have a knot on any part of his garments; no fire except a sacred fire might be taken out of his house; he might not touch wheaten flour or leavened bread; he might not touch or even name a goat, a dog,(41) raw meat, beans,(42) and ivy; he might not walk under a vine; the feet of his bed had to be daubed with mud; his hair could be cut only by a free man and with a bronze knife, and his hair and nails when cut had to be buried under a lucky tree; he might not touch a dead body nor enter a place where one was burned;(43) he might not see work being done on holy days; he might not be uncovered in the open air; if a man in bonds were taken into his house, the captive had to be unbound and the cords had to be drawn up through a hole in the roof and so let down into the street. His wife, the Flaminica, had to observe nearly the same rules, and others of her own besides. She might not ascend more than three steps of the kind of staircase called Greek; at a certain festival she might not comb her hair; the leather of her shoes might not be made from a beast that had died a natural death, but only from one that had been slain or sacrificed; if she heard thunder she was tabooed till she had offered an expiatory sacrifice.(44)