Throughout the novel, Jane has had to develop extreme self-reliance. She has been treated badly by those entrusted to care for her, and so she is not naturally trusting of others and tries to maintain distance between herself and others. When she falls in love with Rochester, she finally begins to accept the possibility of sharing her life with another person. The voice she hears is not only a possible call for help based on the deep soul link she has with him, but a reminder that she has room for others in her heart and mind, that she need not continue to be so alone in the world. Jane has had to rely on her intuition to survive, and the voice that calls to her is another aspect of her psyche that guides her actions.