Read it through once

Another important feature of Marvell's poetry is his use of wit. Witticism for him is not merely verbal display; it is a mode of thought. He employs conceits and paradoxes, but these are not mere ornaments: they sharpen his meanings, they expose the contradictions in appearances and beliefs. In this respect he is akin to the metaphysical school, though he lacks some of that school's more elaborate and tortuous constructions.