Question

CASTLES IN THE SKY

Accepted Answer

Dreams, hopes, or plans that are impossible, unrealistic, or have very little chance of succeeding.

He keeps talking about how he'll move to Los Angeles to be a famous actor, but it's just castles in the sky if you ask me.

You need sound financial advice and a strong plan if you're going to start your own business—it can't be all castles in the sky.

Front	CASTLES IN THE SKY
Back	Dreams, hopes, or plans that are impossible, unrealistic, or have very little chance of succeeding. He keeps talking about how he'll move to Los Angeles to be a famous actor, but it's just castles in the sky if you ask me. You need sound financial advice and a strong plan if you're going to start your own business—it can't be all castles in the sky.