Poets use imagery to paint a mental picture in the reader's mind.
Poets often use imagery to articulate the beauty in something that catches their eye.
ebony, for example
why do poets use sound effects?
For important words or phrases.
Paul Muldoon's Advice for Young Poets
The Responsibilities of Being a Poet Laureate
Meet Cowboy Poet Baxter Black
Comparing Poets to Prose Writers