What does Daniel 4:19 mean?

Daniel, also called Belteshazzar, was stunned for a while, and his thoughts troubled him. The king said, 'Don’t let the dream or its meaning scare you.' Belteshazzar answered, 'My king, I wish this dream was about your enemies, not you.' Daniel 4:19 - Modern Text Bible

(Daniel is deeply disturbed by the dream’s meaning, but the king encourages him to speak honestly. Daniel wishes the warning was for someone else, not Nebuchadnezzar.)