So Daniel went and asked the king to give him some time, so that he could give the king the interpretation. Then Daniel went to his house and told his friends Hananiah, Mishael, and Azariah about the matter, [urging] them to ask the God of heaven for mercy concerning this mystery, so Daniel and his friends would not be killed with the rest of Babylon's wise men. read more.
The mystery was then revealed to Daniel in a vision at night, and Daniel praised the God of heaven and declared: May the name of God be praised forever and ever, for wisdom and power belong to Him. He changes the times and seasons; He removes kings and establishes kings. He gives wisdom to the wise and knowledge to those who have understanding. He reveals the deep and hidden things; He knows what is in the darkness, and light dwells with Him. I offer thanks and praise to You, God of my fathers, because You have given me wisdom and power. And now You have let me know what we asked of You, for You have let us know the king's mystery.

But there is a God in heaven who reveals mysteries, and He has let King Nebuchadnezzar know what will happen in the last days. Your dream and the visions [that came into] your mind [as you lay] in bed were these: Your Majesty, while you were in your bed, thoughts came [to your mind] about what will happen in the future. The revealer of mysteries has let you know what will happen. As for me, this mystery has been revealed to me, not because I have more wisdom than anyone living, but in order that the interpretation might be made known to the king, and that you may understand the thoughts of your mind.