Mark Strand's Reasons for Moving … is a marvelously haunted book. It is not clear whether the speaker of these poems is haunted by what he is, what he is not, or the obscurity of events. But this uncertainty is precisely the dramatic effect the poet seeks, and in most of the poems he achieves it. The theme that pervades the book (which throughout is unified in tone) is given in an introductory quotation from Jorge Luis Borges: "… while we sleep here, we are awake elsewhere and … in this way every man is two men." But Strand does not work this theme in the romantic vein. He neither longs nostalgically for past experience, wishing to recapture a lost pastoral self, nor imagines an amorous and adventurous ideal to dote upon in reverie or dream. Rather, his Doppelgänger, his other self, shares his own fate: neither one of them...