'Night visions' in the Bible

"After these things, as I was watching in the night visions a fourth beast appeared -- one dreadful, terrible, and very strong. It had two large rows of iron teeth. It devoured and crushed, and anything that was left it trampled with its feet. It was different from all the beasts that came before it, and it had ten horns.

I was watching in the night visions, "And with the clouds of the sky one like a son of man was approaching. He went up to the Ancient of Days and was escorted before him.