 As a result, his poetry demonstrates a wide-ranging mastery of form, from long or epic poems (e.g., "A Treatise on Poetry") to poems of just two lines (e.g., "On the Death of a Poet" from the collection "This"), and from prose poems and free verse to classic forms such as the ode or elegy.Some of his poems use rhyme, but many do not.In numerous cases, Miłosz used form to illuminate meaning in his poetry; for example, by juxtaposing variable stanzas to accentuate ideas or voices that challenge each other.