Sam Sensei has been in the martial arts for many years and has heard many explanations for, what initially appears to be, supernatural capabilities of some of the greatest martial artists. Through perseverance and diligence, he has learned the actual physical and physiological explanations behind such feats.
With this understanding, he teaches the martial arts without the metaphysical teachings so often taught in many schools.
People wonder if it is wise for Christians to learn the martial arts ands self defense. The answer is a definite yes. Because of such questions, he’s written a short paper on this topic that is available in pdf format. You can view the paper from this link.
All of the ideas in this paper have been reviewed and approved by several pastors.