To return to Rome, and to the prayers in Cato's book, to which I referred just now when discussing the word _macte_. Attempts have been made to prove that these were originally written in metre;[395] and this is quite possible. If so, it only means that they retained the outward form of the primitive spell; it must not lead us on to fancy that the sacrifice which accompanied the prayer was a magical act, or that the whole process was believed to compel the deity. No doubt there was believed to be efficacy in the exact repetition, as is shown by the directions for piacular sacrifices in case of error of any kind.[396] But the language is the language of prayer, not of compulsion, nor even of bargaining: "Eius rei ergo te hoc porco piaculo immolando bonas preces precor, ut sies volens propitius mihi, domo familiaeque meis."[397] "Mars pater, te precor quaesoque uti sies volens propitius mihi, domo," etc.[398] No amount of vain repetition or scruple can deprive this language of its natural meaning. The god is powerful in his own sphere of action, and man has no control over him; man is fully recognised as liable to misfortune unless the god helps him; but he can worship in full assurance of faith that his prayer will be answered, if it be such as the authorities of the State have laid down as the right wording, and if the ritual accompanying it is equally in order. The faith is, indeed, thus founded upon man's devices rather than the god's good-will as such; it is a belief in the State and its authorities and _ius divinum_, which is conceived, not indeed as constraining the deity, but as calling upon him (_invocare_) to perform his part, in formulae which he cannot well neglect, simply because it would be unreasonable to do so, contrary to his nature as a deity of the Roman State and its _ager_.