« All phenomena of existence around us are the works of a « heart », and it is only through the heart that things are created. In other words, existence is nothing but the thing that appears « heartily ». There is nothing but a « heart ». In Japan, in Martial Arts, we often talk about « Kokoro » or « Shin », translated by heart or feeling. This is a reminder that the karateka must not forget that everything begins with feeling, that he must follow a human path, that he must learn to control his emotions. « Yuishin » symbolizes this approach.

Patrick Rault, 8th Okinawa Dan, 7th Dan in France, immersed himself for 15 years in Japan. Student of Higa Minoru Sensei, Hanshi 10th Dan of Kyudokan School, Shorin-Ryu style, he draws his own calligraphies.