Swordsman Miyamoto Mausashi had written The Book of the Five Rings with a practical approach to swordsmanship, on how to use the sword, where to stand and use the sun or shadows. For him, the point of battle was not showmanship it was winning, That's why he never lost a duel.
THE GROUND BOOK
It is said the warrior's is the twofold Way of the pen and sword, and he should have a taste for both Ways.
The Way of the warrior is resolute acceptance of death.
In short, the Way of my school is the spirit of winning, whatever the weapon and whatever its size. This is the practical result of strategy.
This is the Way for men who want to learn my strategy:
1.Do not think dishonestly.
2.The Way is in training.
3.Become acquainted with every art.
4.Know the Ways of professions.
5.Distinguish between gain and loss in worldly matters.
6.Develop intuitive judgement and understanding for everything.
7.Perceive those things which cannot be seen.
8.Pay attention even to trifles.
9.Do nothing which is of no use.
THE WATER BOOK
With water as the basis, the spirit becomes like water. Water adopts the shape of its receptacle, it is sometimes a trickle and sometimes a wild sea. Water has a clear blue color. Be neither insufficiently spirited nor over spirited. An elevated spirit is weak and a low spirit is weak. Do not let the enemy see your spirit.
You should not have a favorite weapon. To become over-familiar with one weapon is as much a fault as not knowing it sufficiently well. You should not copy others, but use weapons which you can handily properly.
Look at things from a high point of view. The commander must know natural rules, and the rules of the country, and the rules of houses. He should take into account the abilities and limitations of his men, circulating among them and asking nothing unreasonable. He should know their morale and spirit, and encourage them when necessary. You must cultivate your wisdom and spirit. Polish your wisdom: learn public justice, distinguish between good and evil, study the Ways of different arts one by one, so that you can understand the enemy's stratagems, his strength and resources, and come to appreciate how to apply strategy to beat ten thousand enemies. When you cannot be deceived by men you will have realized the wisdom of strategy. It is difficult to know yourself if you do not know others.
THE FIRE BOOK
If you are thoroughly conversant with strategy, you will recognize the enemy's intentions and thus have many opportunities to win. See through the enemy's spirit so that you grasp his strategy and perceive his quality and his strong and weak points to defeat him. This is because, if you attack quickly and thoughtlessly without knowing the enemy's spirit, your rhythm will become deranged and you will not be able to win. If you advance too slowly, you will not be able to take advantage of the enemy's disorder, the opportunity to win will escape, and you will not be able to finish the fight quickly.
The important thing in strategy is to suppress the enemy's useful actions but allow his useless actions. It is bad to be led about by the enemy. You must always be able to lead the enemy about and make him obey your spirit. Attack in an unsuspecting manner, knowing his meter and modulation and the appropriate timing. Knowing the times means seeing right into things. You must force the enemy into inconvenient situations. Attack where his spirit is lax, throw him into confusion, irritate and terrify him.
THE WIND BOOK
Perception and sight are the two methods of seeing. Perception consists of concentrating strongly on the enemy's spirit, observing the condition of the battlefield, fixing the gaze strongly, seeing the progress of the fight and the changes of advantages. This is the sure way to win.
THE EMPTINESS BOOK
By Emptiness I mean that which has no beginning and no end. Attaining this principle means not attaining the principle. The Way of strategy is the Way of nature. When you appreciate the power of nature, knowing the rhythm of any situation, you will be able to hit the enemy naturally and strike naturally. All this is the Way of the Emptiness. There is no timing in the Emptiness.
There is timing in the whole life of the warrior, in his thriving and declining, in his harmony and discord. You win battles with the timing in the Emptiness born of the timing of cunning by knowing the enemies' timing, and thus using a timing which the enemy does not expect. We shout during the fight to get into rhythm.
When the enemy attacks and you also decide to attack, hit with your body, and hit with your spirit, and hit from the Emptiness with your hands, accelerating strongly. This is the No Design, No Conception cut. This is the most important method of hitting.
In the Way of strategy as a warrior you must study fully other martial arts and not deviate even a little from the Way of the warrior. With your spirit settled, accumulate practice day by day, hour by hour. Polish the twofold spirit heart and mind, and sharpen the twofold gaze perception and sight. When your spirit is not in the least clouded and your self is free, when the clouds of bewilderment clear away, there is the true Emptiness.