An author uses dialogue in characterization so you can understand the characters feelings and thoughts. It's a better way of getting to know and understand the character. It's just another way of relating to the character.
Is that the whole question?
I'm not sure what to say here
Well I suppose she means that she can't keep her thoughts straight but I think I might need to read the story to understand it completely.
An example is the manipulation to kill and perform dark actions.
