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When you dream there are no rules. People can fly. Anything can happen. Sometimes there's a moment as you're waking and you become aware of the real world around you, but you are still dreaming. You may think you can fly but you better not try.
— Brian Kessler · Kalifornia

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
In dreams anything goes, even flying. Then comes the warning: in that hazy moment of waking, you might still feel like you can fly. Don't test it. The speaker shows how convincing a dream feels and how firmly reality returns.
Context reviewed