What is the significance of Mildred's overdose? What does Faber represent in the novel?

What is the meaning of the title of Section 3, "Burning Bright"?

What were the circumstances of Clarisse's death?

What was the purpose of "the hound"?

The narrator suffers from catalepsy, a physical condition in which the individual cannot move or speak for hours or, in extreme cases, for months. according to the narrator's explanation, what are some of the ways that one can tell a cataleptic is still living?