About the book: 2009 / Vladislav Eduardovich Meshalkin - doctor-instructor of the health-improving system "Slavic gymnastics", instructor-teacher of the health-combat system "Bear" . Holder of a master's degree in cosmoenergetics. 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 foundation’s program for the study of the Slavic healing heritage. In the Slavic tradition, the doctrine of four primary elements was formed: Fire (Arch of Perun), Water (Arch of Khors), Earth (Arch of Veles) 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 Perun arch is the first in the series of studying “Slavic gymnastics” and is the key for all complexes and exercises. It restores and significantly increases the human force field, restores harmony with the natural cycles of the Universe, expands consciousness, strengthens willpower and develops creative imagination.