Every cloud has a silver lining
Prov. You can derive some benefit from every bad thing that happens to you.
Example : I’m sorry your business is going badly, but don’t despair. Every cloud has a silver lining.
Get your head out of the clouds
Inf. Stop daydreaming
Example : Get your head out of the clouds and watch where you are driving! You’re going to kill us all.
(be) on cloud nine
Fig. very happy
Example : When I got my promotion, I was on cloud nine. When the check came, I was on cloud nine for days.