[the beginning of a letter sent in 1926 by Hart Crane to Harriet Monroe, from The Poetics of the New American Poetry, edited by Donald Allen and Warren Tallman, 1973]
Your good nature and manifest interest in writing me about the obscurities apparent in my Melville poem certainly prompt a wish to clarify my intentions in that poem as much as possible. But I realize that my explanations will not be very convincing. For a paraphrase is generally a poor substitute for any organized conception that one has fancied he has put into the more essentialized form of the poem itself.
At any rate, and though I imagine us to have considerable differences of opinion regarding the relationship of poetic metaphor to ordinary logic (I judge this from the angle of approach you use toward portions of the poem), I hope my answers will not be taken as a defense of merely certain faulty lines. I am really much more interested in certain theories of metaphor and technique involved generally in poetics, than I am concerned in vindicating any particular perpetrations of my own.
My poem may well be elliptical and actually obscure in the ordering of its content, but in your criticism of this very possible deficiency you have stated your objections in terms that allow me, at least for the moment, the privilege of claiming your ideas and ideals as theoretically, at least, quite outside the issues of my own aspirations. To put it more plainly, as a poet I may very possibly be more interested in the so-called illogical impingements of the connotations of words on the consciousness (and their combinations and interplay in metaphor on this basis) than I am interested in the preservation of their logically rigid significations at the cost of limiting my subject matter and perceptions involved in the poem.
This may sound as though I merely fancied juggling words and images until I found something novel, or esoteric; but the process is much more predetermined and objectified than that. The nuances of feeling and observation in a poem may well call for certain liberties which you claim the poet has no right to take. I am simply making the claim that the poet does have that authority, and that to deny it is to limit the scope of the medium so considerably as to outlaw some of the richest genius of the past.
The Poetics of the New American Poetry