A person who is dying really only wants "To Live Until We Say Goodbye". ("That's the title of a book on this very subject, by Elisabeth Kubler-Ross--I recommend it.) That is, they want to LIVE, for as long as they can, to spend time with people they love, to do things they take pleasure in, to go places they've always wanted to see, to--as another poster noted--cross off some of the things on their bucket list. As much as you can, help her to do that. Don't be afraid to cry with her, to say, "I don't know what to say to you." Be honest with her. If it scares you, TELL her that--believe it or not, she knows it, and will appreciate your honesty. She's going on a journey--go with her as far as you can. I did with my own mother--and I have never regretted it. It was hard, but also beautiful.