I love mythology, folklore and fairy tales. I totally love Faerie and the Sidhe. I love the contrasts a good writer can use between a mortal folk who are trying to make every moment count because they know it will NOT last forever and creature of Faerie who expect to live forever and to do as they will with only temporary consequences. A really good author for that contrast in contemporary fiction is Seanan McGuire and her best series is Toby Daye. (Having it set in Portland, Oregon doesn’t hurt either.)
In the second book of the series, mayhem ensues when modern tech meets magic. In an effort to save the culture of Faerie from fading away into scattered individuals, they try to find a way to make individuals part of computer network in a pocket duchy of Faerie. A dryad is successfully turned into a consciousness in the network by incorporating part of her destroyed tree into it and thus transferring “her” into it. A changeling goes mad and kills people to perfect the process, but it never works again. The memories are transferred but they can’t be activated and people are “dead.” But dead means something different for immortals. Their bodies are everlasting. The quest is not how to return those memories to the bodies and let them live again.
So here’s the rub: You can only live forever by giving up what makes you alive. You must give up your physical existence to become a memory construct that thinks it is living but requires nothing but power to run the network servers. Is that an immortality to die for?