In order to form a conception of what kind of body the surviving Self may have, it seems best for the moment to go back to the genesis of our present body. We saw (chapter vii.) that we were compelled to suppose, even in the first germ of our actual body an intelligent form of some kind at work, which while gathering up and representing race-memories of the past, presided over and directed their rehabilitation in the present, thus building up the present body according to a certain pattern—(though subject of course to modification by outer difficulties and obstacles). From the very first, the exceeding complexity and delicacy of the movements within the germ-cells, combined with the decisiveness of their divisions and differentiations, and the perfection and adaptation of the bodily structures and organs ultimately produced, all point in the suggested direction.[91] At the same time, we were compelled to conclude that this form, whose first manifestations in the tiny germ-cell evidently originate from quite ultra-microscopic movements, was itself invisible, invisible through belonging either to an ultra-microscopic world, or to a world of a fourth-dimensional or other order of existence. I think, therefore, that for the present we may accept that conclusion, and fairly suppose that some such invisible form underlies the genesis of each of our bodies. But at the same time the conclusion of invisibility must not be supposed to carry with it the conclusion of immateriality. Quite the contrary. A creature living in the two-dimensional world formed by the water-film on the surface of a pond might have no conception of the water-world below or the air-world above—both of which might be quite invisible to it; all the same a fish or a bird breaking through the surface would instantly cause some very powerful and very material phenomena there! And again, though atoms and electrons individually may be quite invisible, it is only a question of their number and the force of their electric charges, as to how far they intrude upon what we call the material world. Also, we must remember that invisibility or imperceptibility does not by any means imply non-occupation of space. On the contrary again. For four-dimensional existence carries with it an occupation of space which is quite miraculous to us—as, for instance, the power of appearing in two places at the same time; while a number of ultra-microscopic atoms, by their electrostatic attractions and repulsions, may maintain definite relations of distance from each other, and may altogether constitute a cloud of considerable size and complex organization—quite imperceptible as a rule, yet occupying a definite area and fully capable of affecting material things.