To me this has a heavy flavour of
reincarnation and associated
ideas. That you have been a part of past people and things, recombined to our current incarnation, only to be dissasembled and reincorporated into something else. The
Circle of Life, as Disney saw fit to put it in
The Lion King.
Ashes to ashes,
dust to dust.
You are also (at the start) a large portion of your mother's cellular matter. A different spin on the
nature vs. nurture issue.