A burning tree in your dream could symbolize your spiritual growth and development will be interrupted by someone or something. Fire, as a metaphor or symbol can mean destruction, purification, energy, passion. Trees can symbolize growth, stability, protection, security, knowledge.
Therefore, your dream means you have to go through some difficulties and transformations to become the person you aspire to be or to accomplish your current goals or perhaps a response to a ritual request, this could be a sign regarding a current or ongoing outcome of recent events.