One of my favourite shows is Bicentennial Man. Robin Williams
plays as a robot servant. In his existence, he sought the meaning
of life and lived to make himself human. He made himself artificial
skin, learnt what is emotions, learnt about human sociolgoy,
etc.
In the ending part of the show, he asked to become declared as a
human by the government. But he was rejected because as a robot, he
is immortal. He couldn't die. He lived on and realised the
emptiness of living forever. His loved ones passed away, while he
live on. And so he researched on and transfused blood into his
system and made himself mortal, and found to be at peace.
In another movie we all know, The Lord of the Rings. Mortality in
humans is actually a gift. The elves live an endless life in Middle
Earth only to find peace in the West Paradise of Valinor.
What I'm trying to say is that death may seem like a curse to us;
bring life to a standstill. But if we make use of the time we have
on earth meanginfully and purposefully, then we leave this life
without regrets. 
