Dreaming of a bonfire may be a way of showing the dreamers desire to be more assertive in reality through rituals, since the bonfire appears as a symbol in many traditional festivities, but it can also be interpreted as an invitation of your subconscious to burn all those situations, memories etc. This dream could be understood as prevention from taking new paths in life. It could be an invitation to be purified in any levels that you see necessary.
Dream dictionary: Bonfire dream meanings
If we understand this dream as a purifying fire that burns what is not useful we can interpret it as follows: If we clean our mind and feelings it means renewal and increase of possibilities.
Anger, disputes, bad news and danger.
Sometimes when we dream of fire we are foreseeing some kind of danger even though in reality it might manifest itself in a very different way. It is also interpreted as violent passions that take over us and if the fire in the dream is in the form of a bonfire, it could mean that there is an intense desire to end past issues. There are also interpretations that categorize it as a symbol of purification and instincts of destruction.