The heart of Stepping on the Sword, something used principally in the martial arts, is that even with bows and firearms, you must act quickly while t… - Miyamoto Musashi

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The heart of Stepping on the Sword, something used principally in the martial arts, is that even with bows and firearms, you must act quickly while they are being discharged: if you charge quickly, it will be difficult to notch another arrow to a bow or discharge a firearm. In all things, when your opponent sets up a tactic, respond to it immediately according to its own principles and, stepping on his actions, defeat him...This is, therefore, the mind of taking the initiative in everything. It does not mean attacking at the same time as your opponent. Stepping on the Sword is taking your action immediately upon your opponent's action.