|  Before practice, it is important to mention that ken, jo, and
	taijutsu techniques 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.
	
	
  It is hoped that the concept of Riai as presented in the first
	volume has been understood.  That is, ken jo, and tiajutsu movements
	have been combined from three parts into a single body.  If this book is
	read completely, it is felt that one will develop another relationship
	--- control of the opponent through body movement.  For instance, when
	holding a jo and facing an opponent who strikes with a ken, one must be
	able to control him. Conversely, when one holds a ken and faces an
	opponent with a jo the same is true.  If both are without weapons, the
	attacker still must be controlled.  If one bears in mind the above
	concepts, inconsistencies will not arise.  One will be able to control
	an opponent without fail regardless of whether a weapon is involved or
	not providing the idea of boy movement is grasped and understood.
	Emphasis on body movement unifes ken, jo, and taijutsu techniues into a
	single Aikido. 
	
  It must be pointed out one more that too much dependence upon jo or
	ken is not a good idea and is to be avoided. 
	
  Because jo movements are more varied than those of ken, the tendency
	is to think they are more difficult and different.  Therefore, one must
	practice basic techniques [as outlined in Volume I] until the jo and ken
	are felt to be part of the body.  A minimum of two years practice of the
	basic suburi is recommended.  One should by all means practice the
	tanren uchi exercise.  Those practices will develop a stability of the
	hips that is most necessary in taijutsu.  Body movement must be
	accomplished from the hips. 
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