What was the purpose of mary rowlandson writing the story from a narrative of the captivity?

Mary Rowlandson wrote "A Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson" to recount her experiences as a captive of Native American tribes during King Philip's War. The purpose of her narrative was to provide a firsthand account of the hardships and challenges she faced during her captivity, as well as to emphasize her religious faith and the role it played in helping her endure the ordeal. Through her narrative, Rowlandson sought to highlight the providential nature of her survival and restoration.