“This sense of the story being the idea, the starting-point, of the novel is the only one that I see in which it can be spoken of as something different from its organic whole; and since, in proportion as the work is successful, the idea permeates and penetrates it, informs and animates it, so that every word and every punctuation-point contribute directly to the expression, in that proportion do we lose our sense of the story being a blade which may be drawn more or less out of its sheath. The story and the novel, the idea and the form, are the needle and thread, and I never heard of a guild of tailors who recommended the use of the thread without the needle or the needle without the thread.”
(Henry James, “The Art of Fiction” in Majors stories and essays. Literary classics of the United States, New-York, 1999, p582.)
James really likes to use metaphors, even back to back.