How is the raven sitting on the bust of Athena symbolic?

The raven in Edgar Allan Poe's poem, The Raven may have landed on the bust of Pallas Athena due to its significance or connection to its only Words - "nevermore". Pallas Athena is the goddess of Truth in Greek mythology and the raven may have landed on this to employ symbolism within the poem. Landing on the bust would have symbolised to the narrator (and further, the audience) that the raven is telling the truth or speaks from a higher wisdom.

However, landing on the bust of Pallas Athena could very well mean something different and may have a link to a different meaning in Poe's context.