My dream

This was in my dream on one December night.
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An unknown world. I rode on a bus. I saw a green field. But then it changed and I saw a grey scene, which included pipes generating oxygen, different debris and machines spraying water. There were a lot of pipes, I didn't see anything else to the horizon.
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Then I rode a bike. It was hard to breathe. I smelt burning.

It's getting dark. I saw a black moon and incomprehensible signs (smth like a
hieroglyph). The moon incinerated a military car in front of me. It followed me.
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