I'll start with a quote from dad: "Poetry is anything that isn't prose and prose is anything that isn't proetry" Isn't he helpful.
Well, this is how I interpreted poetry and prose:
We have poetry and prose. We have the Eiffel tower and we have a HDB. The HDB is designed to effectively house people, which it is very good at, yet it keeps its structure (or frame) concealed. The Eiffel tower however is designed also to house people but mainly to Express its beauty and make people say "wow". A key aspect of the eiffel tower is that the structure (or framework) is shown off and made a unique thing of beauty. There will never be more than one eiffel tower, but there are many HDBs.
Likewise the newspaper article or essay is there to house the ideas like the HDBs are there to house people. Both the news paper article and the HDB do what they are designed for effectively, yet conceal their structure. The artistic integrity of a poem tends to make it unique, as with the architecture of the eiffel tower, and a key aspect of poems and the eiffel tower is the visible and unique structure. In other words a poem is there to make people recognize the beauty of the structure, like the eiffel tower is there to be recognized for beautiful architecture.