For, according to Monism, all matter in motion is mind; and, therefore, matter in motion is merely the objective revelation, _to_ us and _for_ us, of that which in its subjective aspect--or in its ultimate reality--is mind. Just as the operations of my friend's mind can only be revealed to me through the mechanical operations of his body, so it may very well be that the operations of the Supreme Mind (supposing such to exist) can only be revealed to me through the mechanical operations of Nature. The only difference between the two cases is that while I am able, in the case of my friend's mind, to elicit responses of mechanical movement having a definite and intended relation to the operations of my own mind, similarly expressed to him; such is not the case with Nature. With the friend-eject I am able to _converse_; but not so with the world-eject[11]. This great difference, however, although obviously depriving me of any such direct corroboration of psychism in the world-eject as that which I thus derive of psychism in the friend-eject, ought not to be regarded by me as amounting, in the smallest degree, to _disproof_ of psychism in the world-eject. The fact that I am not able to converse with the world-eject is merely a negative fact, and should not be allowed to tell against any probability (otherwise derived) in favour of psychism as belonging to that eject. There may be a thousand very good reasons why I should be precluded from such converse--some of which, indeed, I can myself very clearly perceive.