If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.
~ Henry David Thoreau
Felix had gone to live in a lotus land of his imagination. Where what is desired is dreamed of as already happened, where obstacles dissolve under the weight of desire, and where reality has vanished entirely.
~ Iain Pears
To know your ruling passion, examine your castles in the air.
~ Richard Whately