Seneca did believe, however, that whatever is caused is a sign of some future event.[173] He accepts divination in all its ramifications. Only he holds that each flight of a bird is not caused by direct act of God nor the vitals of the victim altered under the axe by divine interference, but that all has been arranged beforehand in a fatal and causal series.[174] He believes that all unusual celestial phenomena are to be looked upon as prodigies and portents.[175] But no less truly do the planets in their unvarying courses signify the future. The stars are of divine nature and we ought to approach the discussion of them with as reverent an air as when with lowered countenance we enter the temples for worship.[176] Not only do the stars influence our upper atmosphere as earth’s exhalations affect the lower, but they announce what is to occur.[177] Seneca employs the statement of Aristotle that comets signify the coming of storms and winds and foul weather, to prove that comets are stars; and declares that a comet is a portent of a storm in the same way as the Chaldeans say that a star brings good or ill fate to men at birth.[178] In fact, his chief, if not sole, objection to the Chaldeans would seem to be that in their predictions they take into account only five stars. What? Think you so many thousand stars shine on in vain? What else, indeed, is it which causes those skilled in nativities to err than that they assign us to a few stars, although all those that are above us have a share in the control of our fate? Perhaps those nearer direct their influence upon us more closely; perhaps those of more rapid motion look down on us and other animals from more varied aspects. But even those stars that are motionless, or because of their speed keep equal pace with the rest of the universe and seem not to move, are not without rule and dominion over us.[179] Seneca accepts a theory of Berosus, whose acquaintance we have already made, that whenever all the stars are in conjunction in the sign of Cancer there will be a universal conflagration, and a second deluge when they all unite in Capricorn.[180]