And he said: "Go forth! And you shall say to this people: 'When you listen, you will hear and not understand. And when you see a vision, you will not comprehend.'
In the first year of Belshazzar, king of Babylon, Daniel saw a dream and a vision in his head on his bed. And, writing down the dream, he understood it in a concise manner, and so, summarizing it tersely, he said:
And so, in them is fulfilled the prophecy of Isaiah, who said, 'Hearing, you shall hear, but not understand; and seeing, you shall see, but not perceive.