Funny you should mention that, for if you go to Revenant's Toll and speak to the Wandering Minstrel in Seventh Heaven (don't worry about the
Brass Blade guarding the entrance to the Rising Stones, he tells you that you have nothing to fear from him, but that he naturally is forbidden to let anyone inside
), it triggers a cutscene where Yoshi-P's alter ego actually interprets that very poem:
(Edit, I was wrong. It's not that prophecy he interprets, but the previous years's one:

Originally Posted by
the Wandering Minstrel
"Lances of light herald the Dawn."
"Beckoning shadows deeper still."
"Splendor dances with shades"
"Unsheathed, a rime-kissed blade"
"Spills crimson o'er fields of white."
"Archon Louisoix warned us that shadows would accompany the coming of dawn."
"In answer to ascendent light, darkness will gather in opposition... or so I interpret his words."
"What a 'rime-kissed blade' signifies, I cannot yet fathom. But I have heard that roses of blood are blooming in the white fields of Coerthas, in ever greater profusion."
"The Twelve keep and defend you <character's name>. What tales you'll have when we next meet!"
So back to square one I guess.