build castles in the air
idiomPart ofcastle
build castles in the air — idiom
1. to have plans, dreams, or hopes that are unlikely to become real
1.idiom
Definition
to have plans, dreams, or hopes that are unlikely to become real
Example
Ravi spent hours imagining he was a famous singer, but his father told him not to build castles in the air.
Instead of building castles in the air, Yasmin sat down and wrote a real plan for her small business.