castles in the air
US /ˈkæsəlz ɪn ðə ɛr/
UK /ˈkæsəlz ɪn ðə ɛr/

1.
hayaller, boş umutlar
plans or hopes that are unlikely to come true
:
•
He's always building castles in the air about becoming a millionaire.
Her zaman milyoner olma hakkında hayaller kuruyor.
•
Don't waste your time on castles in the air; focus on achievable goals.
Hayaller kurarak zamanını boşa harcama; ulaşılabilir hedeflere odaklan.