This idea is in keeping with the theme of the story that humans are?

Theme is a binding agent. It makes everything in a story stick together

To state its theme is one way of describing what a story is about. To start finding a story’s theme, see if there is a more or less generic concept that fits, like “reform”, “racism”, “good vs. evil”. The theme of Shakespeare’s Othello is jealousy.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.