How does Ann Lauterbach use imagery in Hum?

Abstract imagery is a literary device favored by the New York School of poets, who,
again, were influenced by the visual arts, especially the abstract expressionism of such artists as Jackson Pollock and Willem de Kooning. Abstract images are those that do not overtly appear to make sense or relate to the subject at hand. Here is the robe / that smells of the night presents such an image in Hum. These words have little apparent relation to the poem's topic and represent an invitation for readers to bring their own ideas and interpretations to a work. In such a way, the artist creates a sort of dialogue between the poet and the reader. By using cryptic language and nonlinear frameworks, Lauterbach, like many other poets of the New York School, seeks to actively engage readers in endowing her poems with meaning.