on form (continued):
Rankine says: Prose because I have intention – I want you to understand.
Poetry, is a different story: You don’t impose – you encounter, you discover.
…
want more? I really recommend listening to:
Edward Hirsch: Poets Writing Prose
…
sub rosa 
“I” has intention. “I” wants “you” to understand.
Hirsch is speaking as “I” to other “I”s.
Rankine is a valuable voice in US poetry AND prose. I hope even more people encounter her…