Flames in a dream could be interpreted as positive because it is considered to be representative of high energy and passion. It is also symbolic of love and family bonds, as well as creativity and enlightenment.
Also the flaming intensity in a dream is not always positive. A person with a passionate personality will have a tendency to get frustrated and angry quickly, but will also have a passionate love for other people and things in their lives. The flame can represent the emotional intensity of the dreamer, the mood of crowds, or it can represent an ongoing situation that is difficult to control.
A person who dreams about a fire might be experiencing an intense internal state of anger or passion which is either not expressed in waking life or which they are not aware of in waking life due to repression.
Dreaming you are on fire usually symbolizes some sort of emotional pressure. It could also symbolize anger being generated within your subconscious as well as deep seated resentment towards someone else, even if you don’t realize it consciously at the time.