"It may still be comforting for people to get their loved ones back in some way."

Memories. All you get is memories. To imagine something else is delusional. Losing a loved one hurts like hell but life goes on. Denial is one part of the processs but most of all the difficult part of the process is remolding oneself into a world where the loved one is no more.

The queen of the King of Sweden, Gustaf Adolf could not accept the passing of her husband and in her grief she stored his heart for years in a jar.

While science fiction flirts with various kinds of immortality it offers no assistance forming a philosophy for todays world.