Forrest Gump

Why Forrest Gump stopped running

And then, Forrest Gump suddenly stopped running and just went back home.
What was that about?

We could say that the desire to go ahead to find our destiny, is deeply etched in our human nature, as is the desire to go back.
Some studies on animal behaviour suggest that: certain fishes, undertake laborious migrations in order to deposit their spawn in particular waters far removed from their customary haunts, so they are maybe seeking out the localities in which their species formerly resided. The same is applied to the migratory flights of birds of passage. “All instincts tend towards the restoration of an earlier state of things.” (Sigmund Freud).

Now, back to humans and just as an example, sometimes it happens that at certain phases of life, some people may want to visit the places where their ancestors lived.
Thus, our destiny will build itself on a combination of these two inner forces: one leading us ahead, and the other one leading us back to an earlier state.