The answer is the Holy Spirit which the speaker calls to help him tell the story in Paradise Lost by John Milton. The "Paradise Lost" is a poem written by John Milton in 1667 about the Christian mythology. In the poem, John Milton usually invokes his muse, which he described as the holy spirit guiding his creativity through the poem.
explain how each author develops the common theme. Compare and contrast how the authors develop this theme by referencing specific literary devices and techniques in your response.