The only thing that bothers me about death is the thought of losing DH or one of the kids - the concept of death, that of grandparents, the eventual death of parents (hopefully not for a very long time though) or even my own isn't something that plays on my mind. I hope it doesn't happen any time soon of course (parents or my own - lost my grandparents years ago), but it is an inevitable part of life.
I don't believe in an afterlife but I do believe that there is a heaven or hell of sorts in terms of how you are remembered and the influence that you have had on others, so I do think it is important to live well.
'Hell' is where you are not remembered fondly or missed, or perhaps are remembered in a negative way because of how you have treated others.
'Purgatory' is where you are not remembered at all - you may not do anything bad in your life, but you haven't done anything good or kind either that has had a positive impact on someone else.
'Heaven' is where you are loved and missed. Where you have had an influence on someone and leave something positive behind, whether that is something that will go on forever - from the 'big stuff' like music, art and charity work to one small act of kindness that someone remembers.
There were a couple of examples from previous posters up the thread - one said they were sad that after she'd gone, no-one would be left who remembered her grandparents - but they clearly had a positive influence on her and would have contributed to who she was...so they will live on through the people that know, love and remember her - even if they didn't know her actual grandparents.
Similarly the poster who talked about someone coming to her brothers aid and how it influenced her and that she tells her kids about it. That person who helped, will live on through her actions as a consequence of his.