Fixation is the way to death, fluidity is the way to life. This is something that should be well understood. - Miyamoto Musashi

Unless you really understand others, you can hardly attain your own self-understanding. In the practice of every way of life and every kind of work, there is a state of mind called that of the deviant. Even if you strive diligently on your chosen path day after day, if your heart is not in accord with it, then even if you think you are on a good path, from the point of view of the straight and true, this is not a genuine path.

This is what you’re looking for. In fact, The Book of Five Rings is often placed alongside The Art of War by Sun Tzu, On War by General Carl von Clausewitz, Infantry Attacks by Field Marshal Erwin Rommel, and Patterns of Conflict by Colonel John Boyd. Each of these works has materially influenced military thinking, directly or indirectly influencing modern combat despite the fact that they were written decades or even centuries ago.

Examine your environment.