What is the Difference Between a Semicolon and a Comma?

This is a great scene from the movie, Wit. Though the scene stands on its own and inspires a re-reading of Donne’s Death Be Not Proud, Holy Sonnet X, you can learn more about the rest of the movie here: http://en.wikipedia.org/wiki/Wit_(film)

In the comment thread below, compose an argument in 4-6 sentences in Standard English about the most artful poetic tool that Donne employs to create his metaphysical insight about life, death, and eternal life.

John Donne’s Holly Sonnet X With a semicolon: http://www.poetryfoundation.org/poem/173363

John Donne’s Holly Sonnet X Without a semicolon: http://www.academia.edu/2335183/John_Donne_Holy_Sonnets_X_Death_be_not_proud_1633