On one fine day, when dusk almost settles and clouds blow the wind to the east, the kid stares at the sky. Among the people who rush back to their homes, each seems to be frustrated by the traffic they themselves create. The kid wonders if there's more life than everything.
A rainbow sets in the sky, with the end out of reach from the kid's eyes. The kid remembers a story about the treasure at the feet of the rainbow. Wonder if it's true as in any other tale.
The world beyond what we can see, is a question seemingly close to a philosophical question: should we fire an arrow to the sky beyond our world, when would that arrow stop? What's there? So many questions to be solved.