I warn, like the one drop of rain br On your face, ere the storm; br Or tremble in whispered refrain br With your blood, beating warm. br I am the presence that ever br Baffles your touch's endeavor,— br Gone like the glimmer of dust br Dispersed by a gust. br I am the absence that taunts you, br The fancy that haunts you; br The ever unsatisfied guess br That, questioning emptiness, br Wins a sigh for reply.