True "fudoshin" is not a rigid, immobile state of mind, but the condition of stability, which comes from the most rapid movement. In other words, lik… - Koichi Tohei

When your techniques are rough it means you are forcing against the principles; proof that you are still immature. You will not be able to stand up to a stronger opponent — you must try to follow the principles. Your character comes out in your techniques. So do the habits of your mind. By correcting the techniques, you can correct the bad habits of your mind. If you constantly collide with others in your practice, your mind will develop a habit of clashing with other people.

You must not think of what you learned as belonging to you. Your learning was only possible because of the people who taught you. If you forget this, before you know it you fall under the illusion that you are the only one who can do it, or the only one who understands. This is called being full of yourself. It is wrong to think, ‘I am strong’, because this strength is nothing but weakness turned inside out. You must think how to act within universal principles.

Like the calm still surface water that reflects the moon and a flying bird, true living calmness is the condition of our mind that reflects all things clearly. This is our original and natural state. By understanding these principles, we can acquire true living calmness.