My wife is a bit out of this world.
I never spoke in my dreams before. And here, after the New Year's Eve, I slept.
And after a while I hear her in a dream arguing with someone in elevated tones:

Let it be! Let him swim!

I stopped her, I think it was probably a bad dream.
She rises sharply on the bed.

and calm. Who is swimming? Who is swimming?

He looks at me and says clearly:

A fly is also a plane.

He falls on the bed and falls asleep again.