The two quotes that best embody how the imagery develops the supernatural atmosphere of the poem are:
E. "Then, methought, the air grew denser, perfumed from an unseen censer / Swung by Seraphim whose foot-falls tinkled on the tufted floor." (Lines 79-80)
This line creates a vivid supernatural atmosphere by suggesting a mystical presence with the "unseen censer" and the mention of "Seraphim," which evokes celestial beings associated with divine realms.
F. "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." (Lines 103-106)
This quote encapsulates the eerie and otherworldly atmosphere through the portrayal of the raven, which is associated with darker themes and the supernatural. The description of the raven's eyes as "the seeming of a demon's" further intensifies this effect.
Together, these lines evoke a strong sense of the supernatural, contributing to the poem's overall atmosphere of mystery and foreboding.