Miyamoto Musashi - Go Rin No Sho: A Book Of Five Rings (Fixing The Eyes In Other Schools) lyrics

Some schools maintain that the eyes should be fixed on the enemy's long sword. Some schools fix the eyes on the hands. Some fix the eyes on the face, and some fix the eyes on the feet, and so on. If you fix the eyes on these places your spirit can become confused and your strategy thwarted. I will explain this in detail. Ball players do not fix their eyes on the ball, but by good play on the field they can perform well. When you become accustomed to something, you are not limited to the use of your eyes. People such as master musicians have the music score in front of their nose, or flourish swords in several ways when they have mastered the Way, but this does not mean that they fix their eyes on these things specifically, or that they make pointless movements of the sword. It means that they can see naturally. In the Way of strategy, when you have fought many times you will easily be able to appraise the speed and position of the enemy's sword, and having mastery of the Way you will see the weight of his spirit. In strategy, fixing the eyes means gazing at the man's heart. In large−scale strategy the area to watch is the enemy's strength. "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. In single combat you must not fix the eyes on the details. As I said before, if you fix your eyes on details and neglect important things, your spirit will become bewildered, and victory will escape you. Research this principle well and train diligently.