Fifth Kumitachi
Ken, Jo, Taijutsu, and Body Movements.
“Before practice, it is important to mention that ken, jo, and tajjutsu techiques are not intended to be done with just the hands. Therefore, one should not use the hands too much but practice as the basis of technique body movements that will turn, throw, or upset the balance of an opponent.
Generally, it is said that the main aspect of Aikido is "empty handed" technique. Instead the idea is advanced here that the main aspect is body movement. "Empty handed" means literally not to be holding anything.
However, "empty handed" may perhaps also mean that even while holding a ken or jo one should not rely only upon the weapon. The person who can use a ken or jo as a part of his body will be able to do "empty handed" technique. For, in Aikido, it does not matter if the techniques are "empty handed" or if one is actually holding something.”