A detailed exploration of how our unquestioned thoughts create our suffering, and how systematic inquiry can dissolve these mental constructs that limit our happiness and freedom. Katie demonstrates that when we investigate our stressful thoughts, they lose their power over us, revealing the peace that was always present beneath them.

The book presents Katie's method called "The Work," which consists of four questions and turnarounds that help readers identify and challenge their limiting beliefs. This process leads to authentic self-discovery and the realization that our problems often stem from our own thinking rather than external circumstances.

A comprehensive examination of how accepting what is, rather than fighting against reality, creates inner peace. Katie shows how resistance to the present moment creates suffering, while alignment with reality brings about natural joy and compassion.