What is the theme in Joni by Joni Eareckson Tada?

Another theme is Christianity. Joni Eareckson grows up in a devout Episcopalian family. Jesus Christ has always been the focus of the Eareckson family. Teenagers are famous for trying to find who they are. In her senior year and before her accident, Joni cannot shake feelings of emptiness and uncertainty. She has been fighting with her family and in her last semester experiences a drop in her grades at school.