But the memory or the imagination of this land far behind, upon which Heaven's light for ever falls, the Asgard of the Goths, the Akkadian dream of Sin-land ruled by the Yellow Emperor, the reign of Saturn and of Ops, diminishes in power and living energy as the ages advance, and, perishing at last, is embalmed in the cold and crystal loveliness of poetry. In its place bright mansions, elysian groves, await the soul at death. Heaven closes around earth like a protecting smile, and from this hope of a recovered Paradise and new Edens amongst the stars, which to Dante and his time are but the earth's appanage, man advances swiftly to the desire, the hope, the certainty of a terrestrial Paradise waiting his race in the near or remote future. Thus, as the immanence of the Divine within the soul of man has deepened, and the desire of his heart has grown nearer the desire of the world-soul, so has the power of memory decreased and been transformed into hope. Man, tossed from illusion to illusion, has grown sensitive to the least intimations of Reality. But these visions of Eden, whether located in a remote past, or in the interstellar spaces, or in the near future, have certain characteristics in common. From far behind to far in front the dream has shifted, as if the Northern Lights had moved from horizon to horizon, but it remains one dream. The earthly Paradise of the social reformer, a Saint-Simon or a Fourier, of a world free from war and devoted to agriculture and commerce, or of the philosophic evolutionist, of a world peopled by myriads of happy altruists bounding from bath to breakfast-room, illumined and illumining by their healthy and mutual smiles, differs from the earlier fancies of Asgard and the Isles of the Blest, not in heightened nobility and reasonableness, but in diminished beauty and poetry. The dream of unending progress is vain as the dream of unending regress.[4] Critics of literature and philosophy have often remarked how sterile are the efforts to delineate a state of perfect and long-continued bliss, even when a Dante or a Milton undertakes the task, compared with delineations of torment and endless woe. And Aeschylus has remarked, and La Rochefoucauld and Helvétius bear him out, how much easier a man finds the effort to sympathize with another's misery than to rejoice in his joy.