“You know,” said Port, and his voice sounded unreal, as voices are likely to do after a long pause in an utterly silent spot, “the sky here’s very strange. I often have the sensation when I look at it that it’s a solid thing up there, protecting us from what’s behind.” Kit shuddered slightly as she said “From what’s behind?”
“But what is behind?”
Her voice was very small.
“Nothing, I suppose. Just darkness. Absolute night.”
Paul Bowles ‘The Sheltering Sky’