But it will be objected, if the inner or spiritual body is, as has just been supposed, of such a subtle and tenuous nature as to be in itself quite invisible, what connection can this have with phantoms that can be photographed, or that can be seen, or that can be actually touched and handled? This question—the question as to how an excessively rare and tenuous and invisible being may gradually condense and materialize so as to come first within the region of photographic activity, and then within the region of normal visibility, and so on into audible and tangible and material existence and operation, I shall discuss more at length in the next chapter. Suffice it here to point out that the general consensus of thoughtful opinion on this subject at the present time points to a probable condensation of some kind, and utilization of such suitable materials as may be to hand, by which the subtle inner body gradually clothes itself in an outer and denser garment. Whether with Fournier d’Albe we suppose a soul-like core to every single cell, or whether we take a more diffused and general view, in any case we seem compelled to believe that our actual bodies are carried on by organizing powers distributed in centres throughout the body.[101] If by any means these vital centres were separated from the gross body, it would still seem natural for them to continue their organizing activity whenever they were surrounded with suitable material. And if, as seems likely, in the case of mediums and seances, a considerable quantity of loose floating organic material is commonly evolved from the bodies of those present, such effluences might be quickly caught up and condensed by any such vital centres present into more or less visible forms and figures.