This book is a discipleship and spiritual restoration guide that addresses a central question:
Why are so many people hardening their hearts toward God—and how can they come back to life spiritually?
Drawing from theology, culture, psychology, and even medical science, Dr. Frank DeLeo uses the physical heart as an extended metaphor for the spiritual heart. Just as physical heart disease develops gradually through blockage and neglect, spiritual “heart disease” develops over time through suffering, cultural influence, doubt, trauma, and misplaced belief systems.
The book argues that:
- Modern culture is experiencing a widespread hardening of the heart toward God
- This hardening does not happen overnight—it develops slowly
- Intellectual shifts (secularism, relativism, scientific materialism)
- Cultural trends (individualism, moral therapeutic deism, syncretism)
- Personal wounds and church hurt all contribute to spiritual deterioration
The result? A generation drifting from Christianity and becoming religiously unaffiliated.