| Quote #4
"But, perhaps, there is no God at all," Raskolnikov answered with a sort of malignance, laughed and looked at her. (4.4.93)
This is in response to Sonia's insistence that "God" won't let Polenka become a prostitute. Believing or not believing in God are versions of individual reality. Raskolnikov sometimes believes in God and sometimes doesn't.
| Quote #5
He [Raskolnikov] lost consciousness; it seemed strange to him that he didn't remember how he got into the street. It was late evening. The twilight had fallen and the full moon was shining more and more brightly; but there was a peculiar breathlessness in the air. (3.6.62)
This is right before Raskolnikov relives the murder in his nightmares. Dostoevsky's dream sequences seem both realistic and totally exaggerated. He's really good at scary dreams.
| Quote #6
And she had destroyed herself, crushed by an insult that had appalled and amazed that childish soul, had smirched that angel purity with unmerited disgrace and torn from her a last scream of despair. (6.6.39)
While Raskolnikov revisits his crimes only occasionally, we get the idea that Svidrigaïlov's nightmares are becoming more and more his reality. On top of that, he's seeing ghosts of the people he abused, and of Marfa, who he probably murdered. This quote refers to the young girl he drove to suicide.