The essence of Aikido is basically the harmony of Aikido and the mind. A fundamental axiom of aikido is that the gentle can control the strong through the study of techniques. However, aikido is more than simply a physical skill which coordinates with the opponent's movement. Taken a step further, this means that the aikidoka must understand his opponent and share his feelings; so the final objective is not to inflict injury but to cultivate a sense of harmony.
Aikido is a form of self-defense that emphasizes wrist, elbow and shoulder locks, all of which are powerful and painful, coupled with training in the use of sword, staff and knife techniques.
Size, weight, age and physical strength play only a small role in Aikido, also making it a uniquely suited option for women, children and older students.