Bertha literally plays with fire in the attic and is burned to death. Even though she dies, this is a form of redemption for it is the only freedom she could ever have.
Rochester plays with fire by believing he could keep his insane wife in the attic without a problem. He is burned when his house is burned down by his wife, proving you cannot hide from the truth. His redemption comes when he and Jane reunite and marry.
Jane is burned by her experiences throughout the novel. She knows she shouldn't love Rochester but she does anyway. She tries to run away but cannot escape her love for him. She is redeemed when she returns to Rochester and nurses him back to health.
