Vladislav Eduardovich Meshalkin is a doctor-instructor of health groups in Slavic gymnastics, a specialist in oriental methods of treatment, and a master of a number of martial arts. For many years he has been researching the combat and healing heritage of the Slavs. Together with the chief neurologist of the North-West region, Professor Evgeniy Robertovich Barantsevich, he heads the program of the foundation for the study of the Slavic healing heritage “Slavic Health”. In the Slavic tradition, the doctrine of four primary elements was formed: Earth (Veles Arch), Water (Horsa Arch), Fire (Perun Arch ) and Air (Vault of Stribog). A person who knows how to maintain the harmonious interaction of the four primary elements gains real health - physical and spiritual. The fourth book in the “Slavic Gymnastics” series is dedicated to the practices of the Codes of Health Mokosh and Stribog. The Mokosh vault corresponds to the primary elements of Water and Earth. It restores the Generic Power, creates favorable events, strengthens and rejuvenates the body, especially the genitourinary system, and helps in preparation for childbirth. The Stribog Arch is endowed with the Power of the primary element of Air. Exercises of this Code significantly improve the plasticity of the body, its “intelligence”; they give Vedogon mobility, fluidity and elasticity, provide powerful protection against energy-informational defeats, expand consciousness, and open up new frontiers for improvement and knowledge.