Ancestry by Sean Hewitt   Perhaps it’s because I’m a Cantabrian, living in the semi-perpetual rebuild that is the “new normal” of life following the earthquakes of 2010 and 2011. Or maybe it’s because I’m now a homeowner, dealing with the multiple joys of discovering that the wiring is erratic, and that the plumbing is something other than entirely according to best building practice. Or possibly it’s because, as teacher of poetry, I’m always on the lookout for poems that illustrate how amazingly complex and layered and energetic even the most simple-seeming poem can be, once you sharpen your gaze below the surface. For whatever reason, this poem has been occupying my thinking. Ostensibly, it’s the story (or evocation) of a house repair: the…