"If we say good night does that mean she will not die"

When you live with someone, you do not really notice change so much. Today Angel came over to visit Nana R. When she walked out of the room in tears I was confused. To me, Nana R looks the same, but to her she does not look well at all. It has been less than a week that Angel has been by to visit but in that short amount of time Nana R's health and physical appearance has changed, most obvious to Angel. Now I know my grandma is not well and I have noticed that she has lost weight and that her appetite has changed. She has also been short of breath more so than ever, but it wasn't until today, through the help of Angel's eyes that I noticed the drastic change. Upon seeing Angel's tears, Miss M asked "Why is she crying?" Now she is only 4, and I was not sure how to respond so I thought for a second and decided that my Miss M needs to hear the truth. I know that she understands that if we do not water the flowers they will die, and I know that she know that if she goes close to the near by canal that she will fall in and the monsters will eat her and she will die. I finally told her, "Nana R is sick and she is going to die soon and go to heaven and we will not see her ever again." After some thought which is typical of things that she is trying to figure out, she said, "Well what will Auntie Berni do?" ( My Aunt B has been faithfully taking care of Nana R with us here in our home) I told her that she would eventually go back to her other home and Miss M said she wanted to go with her. This evening Miss M came up to me out of the blue and said, "I will miss Nana R when she goes with Jesus." I told her I would miss her too and that she needs to make sure that she tells Nana R good night. With a innocent and sincere look she asked, "if we say good night does that mean she will not die?" Oh, what do you say to that?