How we cite our quotes: (Chapter.Paragraph)
Quote #4
I guess it's the greatest homecoming anyone ever had. I feel like the prodigal son being welcomed back into the fold, and I shall never ever go away again. (115.1)
It helps, in this case, to be familiar with the story of the prodigal son. Alice isn't that far off comparing herself to him because the basic message is that no matter what she's done while away, her family welcomes her back—unquestioningly—with open arms.
Quote #5
But first, and all by myself, I wanted to have my own special and sacred little part of this special and sacred day. I wanted to review and repent and recommit myself. Now I can sing with the others, "Oh come all ye faithful, joyful and triumphant," for I am triumphant, this time I really am! (118.1)
It kind of sounds like Alice is just regurgitating religious-sounding words, like she heard them somewhere and decided they fit her mood. She is, once again, leaning on religion to help her process her "sins," which is appropriate, we guess, seeing as it's Christmas and all.
Quote #6
Oh damn, damn, damn, it's happened again. I don't know whether to scream with glory or cover myself with ashes and sackcloth, whatever that means. (138.1)
Once again, Alice is using religious references (specifically, ashes and sackcloth) without even knowing what they really mean. In this case, she got lucky and used it appropriately.