Here are a few things I can tell you about the line:
* Imagery: "Coursers" evokes images of strong, swift horses, possibly in a race or a wild gallop. "Prancing poetry" adds a sense of lightness and playful energy to the scene. It's almost like the horses are dancing to the rhythm of words.
* Figurative Language: The line uses an implied metaphor. "Coursers" are being compared to something else – perhaps poets or words themselves. This comparison adds depth and layers of meaning to the line.
* Rhythm and Sound: The line has a strong rhythm, with a mix of stressed and unstressed syllables that make it easy to read aloud. It also uses alliteration ("coursers" and "prancing") and assonance ("coursers" and "poetry") to create a pleasing soundscape.
Do you have any more context for this line? Is it from a poem you're writing, or did you just come up with it? I'd love to explore its meaning further!