Here are some good quotes from the book "Advice for Future Corpses (and Those Who Love Them): A Practical Perspective on Death and Dying," by Sallie Tisdale.
"Buddhist practice requires on to confront the blunt facts of life."
"Our lives as we live them day by day create the person we will be at the moment of death."
"With every passing day, we create the kind of death we will have."
"There is not a single moment, a single place, where we are not in danger." - Buddhist teacher Ken McLeod
"To be aware of our impending death is mortality salience."