1, dreaming of a rainbow in the sky means that I have been pursuing an illusory god before, and recently I suddenly have the feeling of waking up from a big dream.
2. Dreaming of a rainbow means that the work is smooth and you can enjoy it.
3. Dreaming of colorful or rainbow is a good omen, which is a metaphor for the arrival of good luck or good news.
Everyone who goes to school dreams that there is a rainbow in the sky, which means that they can take the exam and be admitted.