A masterwork about the art of combat and the invisible powers within us all from Rickson Gracie, the world's greatest Jiu Jitsu fighter and New York Times bestselling author of Breathe A mythic figure in fighting and a legendary member of the "first family of martial arts," Rickson Gracie is considered the godfather of what we recognize today as Mixed Martial Arts (MMA). Although Rickson's three decades of total dominance in Jiu Jitsu is astounding, even more astounding is the serenity and spiritual depth of his approach to combat. For Rickson, Jiu Jitsu is a metaphor for life. Some consider Jiu Jitsu a martial art, others consider it a sport, but to Gracie, it is a philosophical system he uses to face and evaluate life's challenges and maintain happiness and mental balance.Gracie wrote Comfort in Darkness after being diagnosed with Parkinson's Disease, a terminal sentence which he views as the final fight of his life, one he knows he will eventually lose. This is Gracie's defining life statement about his spiritual and technical practice.For the first time, Gracie reveals his time-tested theories and techniques of invisible Jiu Jitsu, a combat system and life philosophy for life he developed over the course of his life. Anyone can use the principles of invisible Jiu Jitsu to awaken their dormant inherent power and apply it to their everyday lives. An indispensable tool for any fighter or seeker, Comfort in Darkness is a timeless book of strategy about aligning the mind, body, and spirit.