The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike, or touch the enemy's cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking, or touching the enemy, you will not be able to actually cut him. More than anything, you must be thinking of carrying your movement through to cutting him.