In the novel "Walk Two Moons," Sal learns that it's important to forgive herself and others. She has been carrying around a lot of guilt and anger about the death of her mother, and this has prevented her from moving on with her life. However, she comes to realize at the end of the novel that she needs to let go of these negative feelings in order to be happy. She learns that forgiveness is not about condoning someone's actions, but rather about letting go of the anger and resentment that can hold us back.
Throughout the novel, Sal goes on a journey of self-discovery and healing. She learns to accept herself for who she is, and she comes to terms with the death of her mother. She also learns that it's important to be open to new experiences and to embrace the people who care about her. By the end of the novel, Sal is a more mature and resilient person. She has grown as a result of her experiences, and she is ready to face the future with a newfound sense of hope.