While his verse is fortunately not without idealistic touches, his poetic theory is uncompromisingly realistic, as may be seen in his critical prose essays, some of which deserve to rank only a little below those of Lowell and Poe. Whitman says:—
"For grounds for Leaves of Grass, as a poem, I abandoned the conventional themes, which do not appear in it: none of the stock ornamentation, or choice plots of love or war, or high exceptional personages of Old-World song; nothing, as I may say, for beauty's sake—no legend or myth or romance, nor euphemism, nor rhyme."
His unbalanced desire for realism led him into two mistakes. In the first place, his determination to avoid ornamentation often caused him to insert in his poems mere catalogues of names, which are not bound together by a particle of poetic cement. The following from his Song of Myself is an instance:—
"Land of coal and iron! land of gold! land of cotton, sugar, rice!
Land of wheat, beef, pork! land of wool and hemp! land of the apple
and the grape!"
In the second place, he thought that genuine realism forbade his being selective and commanded him to put everything in his verse. He accordingly included some offensive material which was outside the pale of poetic treatment. Had he followed the same rule with his cooking, his chickens would have been served to him without removing the feathers. His refusal to eliminate unpoetic material from his verse has cost him very many readers.
He further concluded that it was unfitting for a democratic poet to be hampered by the verse forms of the Old World. He discarded rhyme almost entirely, but he did employ rhythm, which is determined by the tone of the ideas, not by the number of syllables. This rhythm is often not evident in a single line, but usually becomes manifest as the thought is developed. His verse was intended to be read aloud or chanted. He himself says that his verse construction is "apparently lawless at first perusal, although on closer examination a certain regularity appears, like the recurrence of lesser and larger waves on the seashore, rolling in without intermission, and fitfully rising and falling." There is little doubt that he carried in his ear the music of the waves and endeavored to make his verse in some measure conform to that. He says specifically that while he was listening to the call of a seabird
"… on Paumanok's [Footnote: The Indian name for Long Island.] gray
beach,
With the thousand responsive songs at random,
My own songs awaked from that hour,
And with them the key, the word up from the waves."
In ideals he is most like Emerson. Critics have called Whitman a concrete translation of Emerson, and have noticed that he practiced the independence which Emerson preached in the famous lecture on The American Scholar (p. 185). In 1855 Emerson wrote to Whitman: "I am not blind to the worth of the wonderful gift of Leaves of Grass. I find it the most extraordinary piece of wit and wisdom that America has yet contributed."
Whitman is America's strangest compound of unfiltered realism, alloyed with rich veins of noble idealism. No students of American democracy, its ideals and social spirit, can afford to leave him unread. He sings, "unwarped by any influence save democracy,"
"Of Life, immense in passion, pulse, and power,
Cheerful, for freest action form'd under the laws divine."