Questão 2809010

And the Raven, never flitting, still is sitting, still is sitting

On the pallid bust of Pallas just above my chamber door;

And his eyes have all the seeming of a demon’s that is dreaming,

And the lamp-light o’er him streaming throws his shadow on the floor;

And my soul from out that shadow that lies floating on the floor

Shall be lifted - nevermore!

Poe, Edgar Allan. "The Raven." The Poetry Foundation, 1845

What is the significance of the Raven's shadow on the floor in the poem "The Raven" by Edgar Allan Poe?