The fear of death seems to based on two things: the presence and certainty of death and the uncertainty of what follows. For sure, every culture and religion has its own version but these conflicts will never be reconciled, since nobody comes back to tell of the afterlife

But behind biological death, the abstract, objective, external, empirical fact of being dead; hide more complex feeling which are called by the phenomenologists:

• fear of ceasing-to-be: a personal, subjective and emotional feeling which arises from our awareness of our own finitude
• ontological anxiety, which has also been called “being-towards-death”
  and “the anxiety-of-nonbeing”,

Our life is more and more a race to material welfare. Most of these distracting ploys amount to seeing death exclusively as an objective event, are often designed to provide an objective understanding of death.