Does Mars reflect https://www.farsightprime.com/where-we-came-from as a source?
Unfortunately, a 'rational-only' watcher cannot get a lock on the identity of the Planet being talked about there.
If it is Mars, Vega or somewhere else.
The most logical (but not necessarily correct assumption - it's just a presumption is) that we came from a long way away first.
Then have done some planet hopping in our Solar System in recent Eons and will probably head off again when things get to precarious here (Leaders can't or don't want to manage the Environment for example).
I think https://www.farsightprime.com/where-we-came-from needs a part II as it doesn't appear to really answer the question as far as it wasn't spelled out in simple terms as a Planet or Solar System name.