what is

The art of art, the glory of expression and the sunshine of the light of letters is simplicity. Nothing is better than simplicity....nothing can make up for excess or for the lack of definiteness. To carry on the heave of impulse and pierce intellectual depths and give all subjects their articulations are powers neither common nor very uncommon. But to speak in literature with the perfect rectitude and insousiance of the movements of animals and the unimpeachableness of the sentiment of trees in the woods and grass by the roadside is the flawless triumph of art. If you have looked on him who has achieved it you have looked on one of the masters of the artists of all nations and times. You shall not contemplate the flight of the graygull over the bay or the mettlesome action of the blood horse or the tall leanings of sunflowers on their stalk or the appearance of the sun journeying through heaven or the appearance of the moon afterward with any more satisfaction than you shall contemplate him. The greatest poet has less a marked style and is more the channel of thoughts and things without increase or diminution, and is the free channel of himself. He swears to his art, I will not be meddlesome, I will not have in my writing any elegance or effect or originality to hang in the way between me and the rest like curtains. What I tell I tell for precisely what is... What I experience or portray shall go from my composition without a shred of my composition. You shall stand by my side and look in the mirror with me.

-- Walt Whitman Preface to Leaves of Grass