This is a powerful poem about the "ugly, grunting . . . disgusting creatures" the poet sees through his microscope. We know the creatures are dead, we know the creatures are sliced, we know they’re splayed on the pathologist’s slides. Are they microbes? Are they "bits of animals"? Are they cancer cells? No one asks "whether these creatures wouldn’t have preferred" to live "their disgusting life / in bogs / and canals" or to eat one another. No one asks any questions, "because it’s all quite useless . . . like everything else in this world," a world in which the poet meets "a lonely girl," a general, a rat, even "my own self at every step."