Back to the Pilot analogy
You can try to learn everything about the theory of flights. You'll never will be able to fly.
Buddhism and Martial Arts are the same. If you spend your life trying to understand, you will become a Buddhist or a Martial Arts Scholar. You won't have acquired any useful skills and all you'll have learned won't really help you when you need it.
On another hand, some believe they practice Zen by spending hours in a row sitting without moving or thinking at all. They are like someone who would sit in the cockpit of the plane, close their eyes, and believe they really are flying.
Some other people practice and teach crazy things (Yes, you can become a certified light saber fighting instructor !) and believe they could actually fight.
Buddhism and Budo first and for all are practices.
Find a teacher, learn how to fly !