I dreamed that I was covered in glass slag, and I had it in my mouth.

Dreaming of being covered by glass slag also means:

At the beginning of the new year, social luck showed signs of improvement. Especially the new people you know recently are very helpful to you. And the people who have hindered you before will be shaken, and the opportunity to cross the obstacle is coming soon. Use the newly established interpersonal relationship to greet the New Year with overwhelming momentum! Emotionally, there is also a chance to beat opponents and win hearts.

I dreamed that I was covered in glass slag, and I also had good or bad luck in my mouth:

Solid foundation, no change, such as standing on the rock to develop, achieve goals, make progress, work hard, be easy to succeed, prosper, develop smoothly, keep fit and live longer. Dajichang

Don't take it seriously!