Descartes asked, How can I know that I am not now dreaming? The Certainty Dream poses similar questions through poetry, but without the trappings of traditional philosophy. Kate Hall’s bracingly immediate, insistently idiosyncratic debut collection lays bare the tricks and tools of her trade. As the dream world and the waking world blur, the body and the dimensions it inhabits become a series of overlapping circles, all acting as containers for both knowledge and uncertainty. At times disarmingly plainspoken, at others, singing with lyric possibility, these poems make huge associative leaps. Taken together, they present the argument that to truly know something, one must first recognize its traces in something else.