@JLNobody,
I have often wondered who we cry for at funerals.
Is it the dead?
If we believe that the dead person had a good heart and we believe in heaven and hell, we would probably believe them to be in heaven, and so there should be no reason to mourn for them.
If we don't believe such things, if we believe that the person simply doesn't exist anymore, then why should we mourn him? He has no existence, and can be neither happy nor miserable. If we believe this and still mourn we are, to put it bluntly, upset about nothing.
The only answer I can come up with of why we mourn our dead is that they are lost
to us.
So we are not mourning death, we are mourning attachments that have been severed. All in all, it is selfishly motivated. It may sound harsh, and knowing this may not make it any easier to lose loved ones, but we do not actually mourn our dead, we mourn the living who remain...