He greets death with equanimity, and it is this bell-note of welcome to death which gives the full bass to the first Boston edition. America, these poems and their writer, and all the struggling creatures of life, are to find their meaning in death, in transition; they are to slough off what is no longer theirs and pass forward into life. Are they then to lose individual identity? No, the soul is identity, and they are of the soul; but that in them which is not the soul will find its meaning in death. There is a spiritual body, which the soul has gathered about itself through the agency of the senses, and that body the soul retains; but the body of the senses dissolves and finds new uses and new meanings, through death. We may illustrate this thought from the life of the whole tree, which is enriched by the life of every leaf. When the sap withdraws from the leaf, and the leaf shrivels and dies, and the frost and wind carry its corpse away and mix it with the mire, the soul of the leaf still lives in the tree. But the mere outer body, which did but temporarily belong to the life of the leaf, finds new value by its destruction and death. Who has not felt the liberating joy of the autumn gales? Who has not rejoiced among the trees, feeling with them the sense of rest and quiescence in which the force of life accumulates anew for expression and growth? But for the fallen leaves also we may rejoice, since their atoms have won something by contact with the life of the tree which now they can communicate to the humble mire. In another of these poems,[274] Whitman compares himself with the historian. The latter studies the surface of humanity, while in the former the inner self of the race finds expression. Such is the difference between an historian and a prophet. In another,[275] carrying forward a kindred thought, he declares that he has discovered the story of the past, not in books but in the actual present. To the seer, as to God, the past is not gone by, but is clearly legible in the pages of our current life, if only we would learn to read them. It is hidden from our normal consciousness; but in certain phases of consciousness to which, it would appear, Whitman attained, it is revealed. To this deeper consciousness Whitman looked for the fulfilling of his own work and the integration of all knowledge in the future. As men shall enter into it, he believed, their work will show the clear evidence of an underlying unity;[276] it will cease to be fragmentary, and our libraries, instead of being mere museums filled with specimens, will become organic like a tree. Then the sense of the cosmos will superintend all things that man makes, as it superintends all the works of nature. A unity already exists, but an unconscious unity, like that of chaos.[277] His own work is, of course, only a part; a prelude to the universal hymn which later poets will raise together. But it is a prelude, and this distinguishes it from other contemporary verse.