Funeral Ceremony

How human beings overcome the fear of death?
This idea seems simple and boring. But it is still a matter to all life. I believe everyone explored it in one moment of life. However, no one qualified to give the absolutly correct answer about death. In the normal state of mind, it is hard to prove someone who can front of death pacefully. The reason is that no one can say that he/she has been completely died.
Epicurus said that death is nothing to us. Death involves neither pleasure nor pain. Religious opinion is that death is the dissipation of consciousness
Where does our fear come from?
Is it because the relative eternal infinity of the universe compared to the limitations of mankind? Or because the desire drive us to get more what we want? Or because uncouscious is one of the reasons we fear of death.
I have been trying to answer this question since I was young, but I cannot get the answer

For many, our sense of wonder at the physical forms of reality quickly decays into habit. A rabbit, a lion, an iguana—they grow mundane, forced into textbook illustrations and caged in names. Living machines that should fill us with awe are mastered as mimetic objects, devalued by a world more concerned with power and reputation, money and belief.
Until, that is, the moment when we have an authentic encounter with one of these breathing, pulsing arrangements of matter in the flesh. Then, for a moment, we are infants again seeing the world as it stood for us before social institution boiled the ideas down to memorizable facts. The academic falls away, and we are more aware of our bodies and senses, and more strongly present in time.
I am an infant in this endeavor—or more accurately, I am a microbe whirling its first attempts at motility. This is my inaugural foray into the medium, and like any new species I have had to learn by trial and error which structures and behaviors are viable, and which are maladaptive. The menagerie’ s imperfections will become the cast-off vestiges of the next piece I create. The successes will be encoded into my practice, until someday I am breathing air, running steadily, and taking wing over new possibilities.