“Joy is not made to be a crumb,” writes Mary Oliver, and certainly joy abounds in her new book of poetry and prose poems. Swan, her twentieth volume, shows us that, though we may be “made out of the dust of stars,” we are of the world she captures here so vividly. Swan is Oliver’s tribute to “the mortal way” of desiring and living in the world, to which the poet is renowned for having always been “totally loyal.”