The first example of symbolism in The Raven, is the Raven itself, which symbolizes bad luck or death, in the text it says "then this ebony bird beguiling my sad fancy into smiling, by the grave and stern decorum of the countenance it wore." (Poe 42)
The second symbol mentioned in The Raven is the bust of Pallas which is a representation of Athena, the Greek Goddess of intelligence, reason, and literature. The author mentions that he "sought to borrow from [his] books surcease of sorrow-sorrow for the lost Lenore" when the raven "perched upon the bust of Pallas just above [the] chamber door." (Poe 9, 40)
Another example of symbolism mentioned in The Raven is the woman Lenore. The name Lenore can be derived from the names Eleanor or Helen which are Greek for light which could symbolize that she was the light of the narrators life, without her there is darkness. Poe states that experiences sorrow "for the rare and radiant maiden whom the angels name Lenore" (Poe 11).