"Divine Secrets of the Ya-Ya Sisterhood" is a novel by Rebecca Wells that explores the complex relationships among a group of Southern women. The story centers on Siddalee Walker, a successful playwright, who confronts her troubled past and her bond with her mother, Vivi. The narrative weaves together themes of friendship, family, and the struggles of womanhood. The title refers to the Ya-Ya Sisterhood, a close-knit group of friends who support each other through life's challenges. The novel delves into their shared experiences, secrets, and the impact of their Southern upbringing, highlighting the importance of sisterhood and resilience in overcoming personal struggles.