I agree with slim, Londo and Scully....this is the teaching, and she is thinking it through.
I'm sorry for her cancer, and hope some way she will be able to see how twisted this teaching is.
I just went to a funeral given by an evangelical preacher and he talked about the deceased wanting us to be in heaven with her and she was concerned if we weren't saved we'd end up in hell. Same theme...different characters. Ai yi yi. Crazy.
My sympathies to you and yours for what you are going through.