I had a nightmare and was in a bad mood. Thank you.

You have evil thoughts. There is "thinking innocently" in the Book of Songs, and "protecting good thoughts" is also said in the Diamond Sutra. Everything is cause and effect. Because I don't want to bother to seek the answers to evil thoughts, I'd better let go and divert my attention to do something I'm interested in to enrich myself, and the nightmare will be blowing in the wind. So don't pursue what this dream indicates, no matter what the answer is, it will only add trouble to you.