When we were born we don't really know where we came from, because we don't remember.
And we think when we die, that's just going to be that.

Some people console themselves to the idea that they are going to heaven, that they are going to be reincarnated or they are going to 'summer land' or something else. People don't really believe that. 

But for most people it's plausible, the real thing that haunts them is that when they die, they go to sleep and are never going to wake up.

? Alan Watts