With your spirit open and unconstricted, look at things from a high point of view.
Never depart from the way of martial arts.
To become the enemy, see yourself as the enemy of the enemy
Do not let your spirit be influenced by your body, or your body be influenced by your spirit. Be neither insufficiently spirited or over spirited. An elevated spirit is weak and a low spirit is weak. Do not let the enemy see your spirit.
You may abandon your own body but you must preserve your honour.
There are many ways of understanding simple things, but generally the opposite is true for difficult ideas