Dream about someone trying to set me on fire hints a fear of impotence or emotional dysfunction. Although you may grow and evolve, you never forget where you came from. You are trying to avoid some issue. This dream is about a period of isolation or loneliness. Your view or understanding of some situation is wrong.
Someone trying to set me on fire dream expresses your ability to tackle problems successfully. You are unsure of who are your enemies and friends. May be you are being buried by problems and stresses of your life. Your dream is an evidence for someone who is cold or distant. Something is not sitting well with you.
If you dreamt about someone trying to set me on fire:
You may have realized that certain beliefs or attitudes that you have held relate more to the past than to your present situation, and you are now prepared to do something about this. Although things may not improve overnight, making a start will bring about a significant difference.