Much is there, yet, demanding line and outline in our Vistas, not only on these topics, but others quite unwritten. Indeed, we could talk the matter, and expand it, through lifetime. But it is necessary to return to our original premises. In view of them, we have again pointedly to confess that all the objective grandeurs of the world, for highest purposes, yield themselves up, and depend on mentality alone. Here, and here only, all balances, all rests. For the mind, which alone builds the permanent edifice, haughtily builds it to itself. By it, with what follows it, are convey'd to mortal sense the culminations of the materialistic, the known, and a prophecy of the unknown. To take expression, to incarnate, to endow a literature with grand and archetypal models--to fill with pride and love the utmost capacity, and to achieve spiritual meanings, and suggest the future--these, and these only, satisfy the soul. We must not say one word against real materials; but the wise know that they do not become real till touched by emotions, the mind. Did we call the latter imponderable? Ah, let us rather proclaim that the slightest song-tune, the countless ephemera of passions arous'd by orators and tale-tellers, are more dense, more weighty than the engines there in the great factories, or the granite blocks in their foundations. Approaching thus the momentous spaces, and considering with reference to a new and greater personalism, the needs and possibilities of American imaginative literature, through the medium-light of what we have already broach'd, it will at once be appreciated that a vast gulf of difference separates the present accepted condition of these spaces, inclusive of what is floating in them, from any condition adjusted to, or fit for, the world, the America, there sought to be indicated, and the copious races of complete men and women, along these Vistas crudely outlined. It is, in some sort, no less a difference than lies between that long-continued nebular state and vagueness of the astronomical worlds, compared with the subsequent state, the definitely-form'd worlds themselves, duly compacted, clustering in systems, hung up there, chandeliers of the universe, beholding and mutually lit by each other's lights, serving for ground of all substantial foothold, all vulgar uses--yet serving still more as an undying chain and echelon of spiritual proofs and shows. A boundless field to fill! A new creation, with needed orbic works launch'd forth, to revolve in free and lawful circuits--to move, self-poised, through the ether, and shine like heaven's own suns! With such, and nothing less, we suggest that New World literature, fit to rise upon, cohere, and signalize in time, these States.