Dreaming of a promotion is a good sign of good luck, which is usually regarded as a sign that there will be good news in the near future, for example, what the dreamer is doing is coming to a successful end, or distant relatives or friends will send back long-lost news in the near future. Dreaming of a promotion, some people think that MUBI indicates that the dreamer will get some unexpected wealth in the near future, for example, he will get a high bonus from the company for his outstanding performance at work. It is suggested that the dreamer make persistent efforts, which can not only increase the wealth income in the dream, but also help the dreamer's future life path.
This is the explanation I found for you in Ziyun constellation. I hope it helps you.