Here is a sample of what's to come. One's personal consciousness is stored in the nervous system. The brain is the hardware, the biocomputer which fabricates and navigates the realities we inhabit. The software systems which operate the brain are the programs, directories, files and personal operating systems which define the individual soul. Your personal software systems crash.
Cremation is more dignified than rotting.
There are three scientific methods of preserving the brain. Within reason, of course. The tombs of the Pharaohs are fantastic models of personal-reality storage but impractical for our times. Material items, mementos, souvenirs. Clothes, books, pictures are obviously vulnerable to loss.