What is the theme on self sacrifice in the novel Jane Eyre?

The theme of self-sacrifice in "Jane Eyre" is prominent throughout the novel as Jane consistently puts the needs and well-being of others before her own desires. She sacrifices her own happiness and desires for the benefit of those she cares about, embodying a sense of duty and moral responsibility towards others. This theme is exemplified in Jane's relationships with characters such as Helen Burns, Mr. Rochester, and St. John Rivers.