Interesting subject. I will add my perspective which is very similar to
@FilthPig .
All Life consists of...
The
Body would be the
Hardware.
The
Soul would be the
Operating System.
The
Spirit would be the
Electricity powering it all.
To quantify this a bit more, the Soul/Operating System would be a Lifeform's
Genome (DNA Sequences).
I agree with
@FilthPig in that I believe Reincarnation is a part of all this. I consider myself a Fundamental Christian BTW.
The purpose of Reincarnation is to place the Soul/Operating System into a new Body/Hardware. This only occurs however if the Operating System has too many 'bugs' in it and cannot be, or refuses to be, salvaged and upgraded.
The Book of Life in the Christian Bible is the Source Code that contains everyone's Operating System that has been pre-qualified for the 'Upgrade'. The Upgrade is the White Stone with the New Name written on it. The New Name is the upgraded OS that has zero bugs in it. Of course, One will need the latest Hardware to run it.