Warren's novel in verse, Brother to Dragons, is most notable in its philosophy and psychology and summarizes vividly his continuing metaphysical and ethical themes. Aware in his moralist's zeal “that poetry is more than fantasy and is committed to the obligation of trying to say something about the human condition,” Warren is in this work more than ever haunted by an anguished sense of the disparity in man between recurrent beatific vision and the ubiquitous evil which blights it. Accounting for the force of the book are Warren's realization of character, his flair for the arresting image and apt phrase, his evocation of situation and atmosphere, and his instinct for the telling structural contrast. Indispensable as are these aspects of literary talent to the precise rendition of value through form, they are all subordinate to Warren's tense brooding over human motivation and human destiny.