At any given time, you can concentrate on either living or dying. Focusing on the living means being aware of how exciting your life is and being thankful for what you have. You can, on the other hand, think about things that have to do with dying, which means thinking about the illnesses that make you afraid of death. The fact is, you have the choice. You can choose what to think. It is in your control. And most of the time, we do not even notice that we could choose to think.