"Be yourself, feel its nature" - is about the content of Japanese "Sidzen." Where, if not in the martial arts is an important criterion for naturalness. Free deprived stiffness of movement - the result of the unity of mind and body, harmony is sought by every practitioner of aikido. In addition to physical techniques and exercises, this kind of Budo emphasizes training and awareness, guided relaxation, and the development of "spirit" and force "mo." Just as "natural" a club called "Sidzen" naturally is exceptionally everything from soft mat to hot water in the shower. For members, the "newcomers" as well as "old people" is a "natural life" is revealed through tradition, mutual respect and personal growth. Traditions are the cornerstones of the club, feel them fully possible at the first training session. Since the Japanese art of aikido, much as it is subject to the principles prevailing in the practice of Japanese masters for centuries.