What in the world was that about?

I, Daniel, saw in my vision by night the four winds of heaven stirring up the great sea, and four great beasts came up out of the sea, different from one another. The first was like a lion and had eagles’ wings. Then, as I watched, its wings were plucked off, and it was lifted up from the ground and made to stand on two feet like a human being; and a human mind was given to it. Another beast appeared, a second one, that looked like a bear. It was raised up on one side, had three tusks in its mouth among its teeth and was told, “Arise, devour many bodies!” After this, as I watched, another appeared, like a leopard. The beast had four wings of a bird on its back and four heads; and dominion was given to it. After this I saw in the visions by night a fourth beast, terrifying and dreadful and exceedingly strong. It had great iron teeth and was devouring, breaking in pieces, and stamping what was left with its feet. It was different from all the beasts that preceded it, and it had ten horns. I was considering the horns, when another horn appeared, a little one coming up among them; to make room for it, three of the earlier horns were plucked up by the roots. There were eyes like human eyes in this horn, and a mouth speaking arrogantly.
As I watched,
thrones were set in place,
and an Ancient One took his throne,
his clothing was white as snow,
and the hair of his head like pure wool;
his throne was fiery flames,
and its wheels were burning fire.
A stream of fire issued
and flowed out from his presence.
A thousand thousands served him,
and ten thousand times ten thousand stood attending him.
The court sat in judgment,
and the books were opened.
I watched then because of the noise of the arrogant words that the horn was speaking. And as I watched, the beast was put to death, and its body destroyed and given over to be burned with fire. As for the rest of the beasts, their dominion was taken away, but their lives were prolonged for a season and a time. As I watched in the night visions,
I saw one like a human being
coming with the clouds of heaven.
And he came to the Ancient One
and was presented before him.
To him was given dominion
and glory and kingship,
that all peoples, nations, and languages
should serve him.
His dominion is an everlasting dominion
that shall not pass away,
and his kingship is one
that shall never be destroyed.

Luke 21:29-33

Jesus told his disciples a parable: “Look at the fig tree and all the trees; as soon as they sprout leaves you can see for yourselves and know that summer is already near. So also, when you see these things taking place, you know that the kingdom of God is near. Truly I tell you, this generation will not pass away until all things have taken place. Heaven and earth will pass away, but my words will not pass away.