What does Poe's poem "Israfel Fel" mean?

To understand this poem, we must first understand the meaning of its title! Israfel Fel Fel is an angel of music, an apostle from Kii Peninsula and the seventh apostle!

This poem reflects edgar allan poe's belief in poetry, and it puts forward a theme to guide edgar allan poe's later poetry creation, that is, rhyme, just like the music of angel israfil, a poem must be pleasing to the ear, just like the singing of a musical angel.