When I do not walk in the clouds I walk as though I were lost. – Antonio Porchia, Voces, 1943, translated from Spanish by W.S. Merwin

The clouds were drifting over the moon at their giddiest speed, at one time wholly obscuring her, at another, suffering her to burst forth in full splendor and shed her light on all the objects around; anon, driving over her again, with increased velocity, and shrouding everything in darkness. – Charles Dickens, The Pickwick Papers

It is better to have your head in the clouds, and know where you are… than to breathe the clearer atmosphere below them, and think that you are in paradise. – Henry David Thoreau