Answer:
The theme, simply put, is fear and its effect on one's mind - particularly a fear of the unknown.
Explanation:
"The Premature Burial" is a short story about one man's extreme fear of being buried alive. He struggles from an internal conflict (him vs. his mind), as he obsessively imagines himself being buried alive over and over. It is worth noting that the narrator frequently suffers from catalepsy (loss of sensation and consciousness similar to death) hence, fearing a cataleptic state will make others believe he is dead.
Well if its chapter two of the lightning theif he sees the fates cut somewones string of life determening their fate and he is worried he might die
That death has taken Joliet as his love and wishes to keep her