In Japan they have developed strange things for meditative purposes… Japan has done a tremendous service to humanity. Meditation was developed in India, but it remained a very limited phenomenon — just sitting in a lotus posture witnessing your thoughts, becoming silent. It did the work, but Japan tried different dimensions, strange dimensions: swordsmanship, but with meditation. Two swordsmen bent upon killing each other have to remain centered in themselves without tension, without fear, without anger, without revenge, just playful.