Probably, many have heard about oriental martial arts, but few people know that the Slavs also had their own completely original, no less interesting, and in some ways more effective martial arts system - "Trizna." The backbone of the book consists of detailed methodological recommendations for mastering the Trizna system set out in the form of lessons - the result of many years of joint work of coaches, scientists, and doctors. The Old Russian martial arts system is a path not only to physical, but also to spiritual perfection.