Dancing at the Blue Iguana - and how it related to poetry

I was browsing stuff on TV last night and ran into this 199X movie about a dodgy strip club featuring Darryl Hannah and the Chinese-American girl from 'Gray's Anatomy'. The thing is that the above mentioned Chinese girl kinda falls in love and she is stripping and a tear is running through her chick. And for what I understood of the plot, she also wrote poetry, so there's also this scene where she's reading a poem as dodgy as the movie to another stripper.

My thoughts: I was translating the movie into how the script should look like. Whoever that wrote the small poem the actress is reading, must have had five good minutes of pure inspiration, or perhaps he/she wrote it on the back of a napkin, or perhaps it came from dunno, Walt Whitman, or stupid Eminem lyrics. So, why is it so amazing for some people that other people can do poetry? And what is poetry? I still don't know. Is it to say things in a way they hold a secret meaning? Is it all about beauty? Sometimes many thoughts get together in my mind and have to get out - when they do, they sound like poetry. Like when I wrote this thing about Daniel Lemus and that he reminded me the taste of rain, and melancholy, and my ex got incredibly jealous 'coz he thought it was beautiful AND it wasn't about him.

Need an answer on what is poetry and Google is not helping much today.