All, then, whether fusion or diffusion, whether of ideas or things, is miraculous. It is the two in one, and at the same time one in two, which is only two and two making five put before us in another shape; yet this fusion—so easy to think so long as it is not thought about, and so unthinkable if we try to think it—is, as it were, the matrix from which our more thinkable thought is taken; it is the cloud gathering in the unseen world from which the waters of life descend in an impalpable dew. Granted that all, whether fusion or diffusion, whether of ideas or things, is, if we dwell upon it and take it seriously, an outrage upon our understandings which common sense alone enables us to brook; granted that it carries with it a distinctly miraculous element which should vitiate the whole process ab initio, still, if we have faith we can so work these miracles as Orpheus-like to charm denizens of the unseen world into the seen again—provided we do not look back, and provided also we do not try to charm half a dozen Eurydices at a time. To think is to fuse and diffuse ideas, and to fuse and diffuse ideas is to feed. We can all feed, and by consequence within reasonable limits we can fuse ideas; or we can fuse ideas, and by consequence within reasonable limits we can feed; we know not which comes first, the food or the ideas, but we must not overtax our strength; the moment we do this we taste of death.