This dream shows that you have reached the realm of "always wiping, not making dust", which shows that you have "wisdom" The so-called "Buddhism is the sea, trust is the ability, and wisdom is the ability", which is a good start!
But on the other hand, it also shows that you are not fully enlightened.
Buddha said: "All phases are illusory", so don't be trapped by "phase" or disturbed by "color". If so, you will reach the realm of Buddha.