The best way to look at this stuff is' In the end do you fight to stay alive or relax and believe in afterlife.?
I Believe in Mankind in all its Good' Bad' ugly and beauty and rely on Science to tell me how long to live, so at the end family can carry on living with the knowledge i'll always be were they last seen me 6ft under or in dust.
I'm happy to live now then to simply die then. Tho some people never die,
ATEN "Akhenaten"
AMUN "Tutankhamun"
RA "Ramesses II"
there afterlife is that there never forgotten by Mankind...
!hence why people want to be Famous