In the world of martial arts, few figures have left as powerful a mark as Sosai Masutatsu Oyama — the founder of Kyokushin Karate. His life was defined by extraordinary discipline, unmatched physical power, and a lifelong pursuit of what he called “the ultimate truth.” Today, millions of students around the world bow before class under the Kyokushin banner — a testament to a man whose vision reshaped modern karate forever. But who was Sosai Oyama, and what made his philosophy

A Word That Carries a World of Meaning If you’ve trained in Kyokushin karate for more than five minutes, you’ve probably heard “Osu.”...