Imagine yourself in lets say 50 or 60 years from now. You are old, married, have children and your children also have children of their own.
Everything is pleasant except... your parents and siblings have died. You're the only one left.
I find this to be quite saddening T_T I know it would happen sooner or later and for some reasons I rather be the one to die first than watching my love ones leave me...
p/s : I got this weird imagination last night while reading my Islamic Civilization book :P