the first is where and when and the second is theme
1. It was already one in the morning; the rain pattered dismally against the panes, and my candle was nearly burnt out, when, by the glimmer of the half-extinguished light, I saw the dull yellow eye of the creature open; it breathed hard, and a convulsive motion agitated its limbs.
-Personification is shown in this excerpt, specifically in the line "I saw the dull yellow eye of the creature open; it breathed hard, and a convulsive motion agitated its limbs." Because the author is giving human like characteristics to the light.
2. Mingled with this horror, I felt the bitterness of disappointment; dreams that had been my food and pleasant rest for so long a space were now become a hell to me; and the change was so rapid, the overthrow so complete!
- The line "for so long a space were now become a hell to me; and the change was so rapid, the overthrow so complete" uses a metaphor because the vents that take place aren't literally hell, but they are describing it in a way that makes it feels that way.
