Daniel 6:18 (ESV)

18 Then the king went to his palace and spent the night fasting; no diversions were brought to him, and sleep fled from him.

Completely worried, Darius goes back to his palace. He is so preoccupied with Daniel that all pleasure escapes him. He cannot be happy. With all the sorrow and worries, he is unable to fall asleep. Nothing or no one can distract or entertain him. It is this powerless man, filled with anxiety and in distress whom people have to implore for help, as being the great god for thirty days. What a wretched religion!