If your head is "in the clouds," you're a dreamer.
The phrase "head in the clouds" typically means someone is daydreaming or not paying attention to what is happening in the present moment. It can also suggest that a person is idealistic or disconnected from reality.
"I'm in the clouds." Same thing as saying someone has their head in the clouds in English.
cirrus clouds mean usually fair (good) weather
The meaning of cloudless is "free from clouds".
nimbus
Stay calm
Keep an idea in ones head to act on it later.
It means to remain calm and rational in the middle of a chaotic or confusing situation. The poem "If" by Rudyard Kipling begins: "If you can keep your head when all about you/ are losing theirs and blaming it on you..."
The head person.
An idiom is something that does not mean what the phrase says literally, so yes. You can't actually laugh your head off.
This is not an idiom - it means exactly what it says. You should stay fit and healthy.
To keep struggling and not give up.
"Dive in head first" is to rush into a situation without thinking.
Keep bothering someone.
To turn completely around and head back in the direction you came from.
It means " keep calm, don't get worked up"
If used as an idiom, it usually means that you are confused about something. The image is of you scratching your head to try to think better.