In this book, Tony Marshall defines spiritual maturity and provides a comprehensive model for evaluating one's spiritual life. His methodology is holistic integrating real life examples, developmental theories and the Holy Scriptures. He further explores how to process through this model drawing on principles of adult, and experiential learning. Marshall has an approach to spiritual maturity that can be utilized by anyone regardless of their circumstances of life, theological understandings or previous learning patterns. He emphasizes that which is common in the human experience and presents 10 signs of a mature Christian, as a guide to pursue. He concludes with wisdom discovered from living a spiritually mature life in Christ.