Even if they don't know that you are practicing for them, you are helping them and in turn they are helping you. They are actively helping you to develop your compassion, and so to purify and heal yourself. For me, all dying people are teachers, giving to all those who help them a chance to transform themselves through developing their compassion.
Sogyal RinpocheDon't you notice that there are particular moments when you are naturally inspired to introspection? Work with them gently, for these are the moments when you can go through a powerful experience, and your whole worldview can change quickly.
Sogyal Rinpoche