The form nature acquires is, however, itself vague and uncertain and can ill serve, for long ages, to define the other realms which depend on it for definition. Hence it has been common, for instance, to treat the spiritual as a remote or finer form of the natural. Beyond the moon everything seemed permanent; it was therefore called divine and declared to preside over the rest. The breath that escaped from the lips at death, since it took away with it the spiritual control and miraculous life that had quickened the flesh, was itself the spirit. On the other hand, natural processes have been persistently attributed to spiritual causes, for it was not matter that moved itself but intent that moved it. Thus spirit was barbarously taken for a natural substance and a natural force. It was identified with everything in which it was manifested, so long as no natural causes could be assigned for that operation. [Sidenote: Sense and spirit the life of nature, which science redistributes but does not deny.] If the unification of nature were complete sense would evidently fall within it; it is to subtend and sustain the sensible flux that intelligence acknowledges first stray material objects and then their general system. The elements of experience not taken up into the constitution of objects remain attached to them as their life. In the end the dynamic skeleton, without losing its articulation, would be clothed again with its flesh. Suppose my notions of astronomy allowed me to believe that the sun, sinking into the sea, was extinguished every evening, and that what appeared the next morning was his younger brother, hatched in a sun-producing nest to be found in the Eastern regions. My theory would have robbed yesterday’s sun of its life and brightness; it would have asserted that during the night no sun existed anywhere; but it would have added the sun’s qualities afresh to a matter that did not previously possess them, namely, to the imagined egg that would produce a sun for to-morrow. Suppose we substitute for that astronomy the one that now prevails: we have deprived the single sun—which now exists and spreads its influences without interruption—of its humanity and even of its metaphysical unity. It has become a congeries of chemical substances. The facts revealed to perception have partly changed their locus and been differently deployed throughout nature. Some have become attached to operations in the human brain. Nature has not thereby lost any quality she had ever manifested; these have merely been redistributed so as to secure a more systematic connection between them all. They are the materials of the system, which has been conceived by making existences continuous, whenever this extension of their being was needful to render their recurrences intelligible. Sense, which was formerly regarded as a sad distortion of its objects, now becomes an original and congruent part of nature, from