Gravity as a physical influence, the weight of gravity, and gravity of thought and action are central to Andrew Sant’s new collection of poems — and so too is the means of baffling gravity, not the least by the deployment of wit. Gravity here is also baffling in the alternative sense, as a force or as a theory, which summons perplexity. These poems, wide ranging in time and place, are richly textured investigations of the world, its terrain and its people, by an alert, often restless, informed observer.