Philip K. Dick – “The Preserving Machine”

Doc Labyrinth leaned back in his lawn chair, closing his eyes gloomily.

(from Paycheck and other classic stories by –)

Preservation, immortality, everlasting. This is a nice theme. One might as well find Elvish theme in it (see J.R.R. Tolkien) .Ultimately, it all fails, change being the basic structure of the world.