Systema builds its foundation on the principles of the physiological systems of the human body. The four major principles of study are Breathing, Relaxation, Structure, and Movement. Instead of teaching various techniques for various situations, Systema focuses on methods that develop movements that are explosive, effortless, spontaneous and unpredictable all while remaining free of excessive tension or emotion- the hallmarks of a true professional. The result is highly efficient, practical martial application that is both unpredictable and explosive. There are no competitions, no belts, no forms to memorize, or traditions to follow. Instead we focus on examining ourselves, the extent of our limitations, and to see how proud and weak we really are. Systema is also known by another name "poznai sebia" or "Know Yourself."