A dream about carnival points either to the need to stop pretense, to take off your mask (the persona, and show the true Self). Or it could be a message to be more outgoing and have more fun.
The image of the carnival often appears when you feel rigid and cut off from life. Particularly, when, in the dream, you are rejecting the carnival, you are denying your own wild and carefree side. Furthermore, carnival is also always connected to the Fool, a symbol that combines the absurd and the wise, and represents freedom. On the other hand, the fool is also somebody who, in a conventional sense, is unable to organize his everyday activities.
Folklore: Advancement.