Explaining the process and energetics of Daoist internal alchemy, the author describes in detail the practice of Nei Dan, the alchemical firing practice of Daoism that has until very recently been a closely guarded secret. Drawing together a huge amount of esoteric material on the hidden aspects of Daoist practice, he presents theory and practice coherently for western practitioners. He offers his own experiences of each stage of attainment, describing the tangible results that should appear, and provides guidance on the practicalities and potential pitfalls of alchemical training.

Jason Gregory reveals the psychological and spiritual damage digital technology and social media are having on the human mind, and gifts you a digital free lifestyle to reclaim your health and sanity for a better world. Spiritual Freedom in the Digital Age demonstrates that even though we are more connected than ever before, we are subtly going insane and also diminishing our health. Even though we are more connected; the constant conflict in the digital world proves that we are more divided than ever. Spiritual Freedom in the Digital Age is an antidote to the digital problem.

Details the mindfulness method of non-doing to cultivate intelligent spontaneity and effortless action. Merging Taoist philosophy, Hindu principles, and Confucianism along with scientific findings, Jason Gregory outlines the practice of wu-wei as a vehicle to realize our innate freedom, revealing that when we release our ego and allow life to unfold as it will, we align ourselves more closely with our goals and cultivate skill and mastery along the way. Equating "being in the zone" with a stillness of the mind, Gregory shares meditation practices coupled with yoga exercises from Patanjali that allow you to approach life with a mastery of acceptance, releasing deluded beliefs of how to achieve success that make your mind "sticky" and poised for conflict. The author shows how practicing wu-wei paradoxically empowers you to accomplish all that you desire by having no intention to do so, as well as allowing you to become receptive to nature's blueprint for expressing beauty. Revealing wisdom utilized by renowned sages, artists, and athletes who have adapted "being in the zone" as a way of life, the author shows that wu-wei can yield a renewed sense of trust in many aspects of your daily life, making each day more effortless. As an avid wu-wei practitioner, he provides keen insight on how you, too, can experience the beauty of achieving an enlightened, effortless mind while reveling in the process of life's unfolding.

In this new and improved third edition of the highly popular Game Engine Architecture, Jason Gregory draws on his nearly two decades of experience at Midway, Electronic Arts and Naughty Dog to present both the theory and practice of game engine software development. In this book, the broad range of technologies and techniques used by AAA game studios are each explained in detail, and their roles within a real industrial-strength game engine are illustrated. New to the Third Edition This third edition offers the same comprehensive coverage of game engine architecture provided by previous editions, along with updated coverage of: computer and CPU hardware and memory caches, compiler optimizations, C++ language standardization, the IEEE-754 floating-point representation, 2D user interfaces, plus an entirely new chapter on hardware parallelism and concurrent programming. This book is intended to serve as an introductory text, but it also offers the experienced game programmer a useful perspective on aspects of game development technology with which they may not have deep experience. As always, copious references and citations are provided in this edition, making it an excellent jumping off point for those who wish to dig deeper into any particular aspect of the game development process. Key Features Covers both the theory and practice of game engine software development Examples are grounded in specific technologies, but discussion extends beyond any particular engine or API. Includes all mathematical background needed. Comprehensive text for beginners and also has content for senior engineers.