If you’d like to use this for a specific project, I can help you:

focused on the bag’s perspective. Write a technical breakdown of the fluid dynamics involved.

or scene description using this motif.

It is often used by directors to fill a "dead" space in a scene, providing movement and a sense of loneliness or quiet contemplation without requiring dialogue. It forces the viewer to slow down and acknowledge that even in the busiest city, there are moments of accidental, unchoreographed grace.