Inner Gate: The Orthodox System of Ngo Cho Kun is a monumental work of preservation and pedagogy—representing a lifetime of study, research, and reflection. More than a technical manual, it stands as a living record of Chua Giok Beng’s orthodox transmission—an “Inner Gate” once reserved for trusted disciples, now carefully opened to sincere readers and practitioners worldwide.

Mark Wiley bridges historical scholarship and direct lineage knowledge with insights from physics, sport science, and classic texts. The result is a rare synthesis of classical doctrine and modern understanding—a work that presents kung-fu not merely as a system of combat, but as a lifelong discipline for cultivating body, mind, and virtue.

The architecture of Inner Gate mirrors the path of mastery itself—from roots to refinement, from movement to realization. Across six comprehensive parts and a reflective afterword, the book serves as both lineage record and training guide. Within its pages, Wiley explores the physiological and mechanical dimensions of practice—the kinetic chain, rooted stance, structural alignment, and breath regulation—revealing how internal and external forces harmonize, and how traditional power concepts such as Qi and Fa Jin align with the principles of modern biomechanics.

Enter the art once reserved for disciples—now revealed to the world.