Death is frightening because there is no way someone can die and them come back and tell everyone what happened so those who are going to die can expect what to occur. It's something which is unexpected, harsh and forces one to view their lives in a realistic aspect that at one point in life you will no longer be who you once were - you will end.

That's where Heaven comes in; the belief that the end is not the end - but merely a passing point into another existance, whether heaven or another life.

There are many beliefs in heaven. Usually it's depicted, in one way or the other, as an eternal resting place for the soul (mind?). It includes all you could want and more; bliss, euphoria.

What are your thoughts on what Heaven is? Or if there is a heaven and why or why not?

Then there is also the belief in reincarnation where there isn't so much any resting place but more of a belief in continual rebirth of the energy in yourself into another entity. So in this case Heaven is to continue Survival and accept that life is a cycle and that after death you have new life and continue to live.

Forgive me if this has been extrapolated upon previously.