The infallible Wikipedia says of modern Chinese poetry:
"Due to the special structure of Chinese writing and Chinese grammar, modern poetry, or free verse poetry, may seem like a simple short vernacular essay since they lack some of the structure traditionally used to define poetry."
In its article on free verse as it relates to English literature, we have the following nugget:
The internal pattern of sounds, the choice of exact words, and the effect of associations give free verse its beauty.
Is the same generally true in Chinese as well?
What characteristics (e.g., wordplay, alliteration, sentimental language) distinguish a poem in free verse from an essay or address?