With that detail from the previous snippet in mind:
Circumstance: Open by describing the circumstance under which someone could see or otherwise perceive this detail.
Detail: Describe the detail.
Contrasting circumstance: Then come up with a contrasting circumstance in which you would perceive contrasting details.
Contrasting detail: Describe the contrasting detail.
Zooming in: Zoom into one particular detail in the scene you’ve created.
Thoughts: Finally, shift from external description to internal thoughts.