Sensu (Fan)

 

The Sensu in Aikido Training

The Sensu is sometimes regarded as an unusual piece of equipment within Aikido. Why, one might ask, has such a simple personal item as a folding fan become a familiar sight in Aikido training and demonstrations?

It is important to clarify that we are not referring to the military fan, known as the Tessen. The Tessen was often constructed with metal reinforcements and, in the hands of a skilled practitioner, could become a formidable and potentially lethal weapon. Some were designed with hardened or sharpened edges capable of inflicting serious injury.

The Sensu discussed in this article is the ordinary folding fan traditionally made from bamboo and silk. For centuries, these elegant fans have been carried by both men and women and have appeared in countless designs ranging from simple and functional to highly ornate works of art. Their delicate beauty often makes it difficult for people to imagine them being associated with martial arts training, let alone considered a defensive tool.

As an offensive weapon, the Sensu is admittedly limited when compared to more conventional martial arts implements. However, Aikido has always embraced creativity, adaptability, and the harmonious blending of energy. The flowing, circular movements that characterise Aikido naturally lend themselves to the use of the Sensu, making it a valuable training aid rather than simply a decorative accessory.

The Sensu enhances the fluidity of movement and encourages practitioners to develop greater awareness, precision, and coordination. Its use introduces new dimensions to practice, allowing students to explore timing, distance, posture, and the extension of intent in ways that are both challenging and rewarding. Many practitioners find that training with the Sensu adds a sense of freedom and expression that is difficult to describe until it is experienced firsthand.

Unfortunately, some view the Sensu as overly delicate or even effeminate and therefore dismiss it as an unsuitable training tool. Such opinions often stem from misconceptions rather than experience. The principles of budō teach us to look beyond appearances and to appreciate the value of all training methods that contribute to personal development and technical understanding.

While the Sensu may appear passive, it can be surprisingly effective as a defensive implement. Many traditional self-defence principles can be adapted to its use. In its open position, the fan can distract an attacker, obscure vision, or momentarily disrupt concentration. When closed, it can be used to deflect, trap, strike, or apply pressure to vulnerable points. Practitioners familiar with tanbō techniques will often find the transition to Sensu training both natural and enjoyable.

Even the simple act of opening the fan can serve a purpose. The distinctive sound created by the snapping motion can startle or distract an opponent. Interestingly, the tone can be varied from sharp and forceful to soft and subtle, reflecting the balance of hard and soft principles often associated with the Yin and Yang philosophy.

One of the disappointments is that relatively few dojos incorporate Sensu training into their regular curriculum. More often than not, the fan appears only during demonstrations, where its graceful movements add visual appeal. However, interest in Sensu training has grown in recent years, largely due to the influence of European Aikido and Tai Chi practitioners who have explored its potential extensively. Inspired by their example, a number of dedicated British aikidoka have begun to make the Sensu an integral part of their own training programmes.

It should be remembered, however, that the Sensu is merely a tool. It cannot transform poor technique into good technique, nor can it compensate for a lack of understanding. Like any training aid, its value depends entirely upon the skill, dedication, and mindset of the practitioner.

Those interested in acquiring a Sensu may encounter some difficulty. Traditional bamboo-and-silk fans can be challenging to obtain and often need to be imported from China or Japan. Prospective buyers should also exercise caution when considering the metal versions sold through some martial arts suppliers. While visually impressive, they are generally less suitable for the type of training described here.

Metal fans tend to be heavier, more cumbersome, and less responsive than traditional Sensu. They can also become slippery during use, particularly if the metal surfaces react with perspiration or leave residue on the hands. This not only affects handling but may also create a safety risk if the fan is accidentally dropped during practice.

Ultimately, the Sensu serves as a reminder that martial arts are not solely about power or force. Sometimes the most valuable lessons can be found in the simplest of objects. Through the humble fan, practitioners can deepen their understanding of movement, harmony, awareness, and the subtle principles that lie at the heart of Aikido.