In English, we often use expressions related to the weather to talk about anything and everything!
You may have heard of the expression "raining cats and dogs." We use it when it is raining very, very hard. We could also say that "It's pouring outside!"
This is similar to another useful expression: "When it rains, it pours!" This means that when something bad happens, other bad things usually happen at the same time. For example, if you got dumped by your girlfriend or boyfriend and fired from your job on same day, you could say "When it rains, it pours!"
Getting fired is horrible, but it might not be all bad. The "silver lining" might be that you get to sleep in as late as you want. This expression is used to point out that there is always something good in even the most difficult or unhappy situations. If you look closely at the edge of a dark cloud, you might see the shining sun behind it – a silver lining. This is where the expression comes from.
The worst thing about getting fired is obviously that you wouldn't have any money. This is why many people "save for a rainy day". This means to put money away in case something bad happens - like losing your job!
Let's say you start looking for a new job and decide to apply to be a NASA astronaut. Your friend might say "you have your head in the clouds". This means that you are being unrealistic and are unlikely to achieve your goals.
But what if you actually get the job? Then you'd be on "cloud nine". This just means that you are very, very happy!
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