The purpose of Karate training is to train the body. To make it strong and powerful. This is not to be approached on its own. The Body is trained by training the mind. When the mind and body is strong this in turn produces a strong spirit, a strong spirit produces a harmonious individual. This is our goal. Achieving this goal requires a lot of patience. Each time we say Osu, we are reaffirming our determination to achieve this through our Karate training.
Osu means to persevere. Each time we say Osu we are reminding ourselves to be patient with ourselves and each other. Kyokushin teaches us never to give in, no matter how big the task may seem, always do your
best. This is the spirit of Kyokushin. This is what we call: The spirit of perseverance – or: Osu no Seishin.