'Night visions' in the Bible

After this I saw in the night visions, and behold, a fourth animal, awesome and powerful, and extremely strong. And it had great iron teeth. It devoured and broke in pieces, and stamped what was left with its feet. And it was diverse from all the animals that were before it; and it had ten horns.

I saw in the night visions, and behold, there came with the clouds of the sky one like a son of man, and he came even to the Ancient of Days, and they brought him near before him.