I say to people who care for people who are dying if you really love that person and want to help them be with them when their end comes close. Sit with them - you don't even have to talk. You don't have to do anything but really be there with them.
I can get very philosophical and ask the questions Keats was asking as a young guy. What are we here for? What's a soul? What's it all about? What is thinking about imagination?