Dream of Death usually symbolize a major change in life, Might be of career, a new business or a new relation. End of one phase and beginning of next.
It shows there might be a change in your life. or Might be Sai has protected you from some evil by taking the fire on Him. also someone in family old person might need your more attention and assistance. Also It could be for taking life and time more seriously. Baba is taking care of you.
This is what I think, Could be, But if there is some other indication Sai want to Give you, I pray He Give you the meaning too.
Still if you think, Can Visit Sai Temple, offer coconut and some flowers to Baba.
May Sai Bless You!
om sri sai ram!