why poems
I didn't read the whole thread but hopefully can contribute...
Unfortunately I don't speak or read Chinese....But
I have heard from those who do that the poems for the sets rhyme. In a sense they are like a little song.
If we go back to our childhood we can remember nursery rhymes because of their sing-song style.
Naturally it would be easy to remember "moves" or techniques that go along with the song.
If you doubt... try singing "I'm a little teapot..." and do the motions. LOL
peace to all
"Grow through Pain." - Tainan Mantis