How does the form, language, and punctuation/grammar ginsberg uses

How does the form, language, and punctuation/grammar Ginsberg uses supplement the meaning of “Howl” and “America”? How/why does Ginsberg blend fictional and non-fictional anecdotes in these poems? Do these qualities make this poem a postmodern work? Why? 

What are the major metaphors in “Lady Lazarus” and what do they say about Plath? What do we learn about the narrator and her father in “Daddy”?