One evening, as the sun bled crimson over the edge of the world, his grandson sat beside him. "What do you see up there, Grandfather? It’s just empty."
Mares, a character grounded in a humble or earthly reality (perhaps a farmer, a sailor, or a man in a crowded city) whose internal compass always points upward.
Mares didn't look down. "Empty? No, Petre. The earth is where we keep our shadows. The sky is where we keep our light. Down here, everything has a fence. Up there, even the wind doesn't know where it ends."
Use the sky as a metaphor for freedom during a time of oppression.
If you wish to expand this into a longer work, consider these angles:
He would smile, his neck craned at that characteristic angle—the chin tilted up, the gaze fixed on the blue vacuum above. To Mares, the earth was merely a waiting room. His real life was happening three thousand feet up, among the hawks and the cumulonimbus formations that looked like white cathedrals.