A sesshin is a period dedicated to zen meditation, zazen: sitting meditation in the traditional posture of lotus.
Touch the mind, become intimate with oneself, concentrating in zazen on the unified body and mind. This teaching was transmitted by Master Taisen Deshimaru.
Neither philosophy, nor ethics, nor religion, the Zen allows us to reach the origin of every philosophy, ethics or religion. Spring of awakening, the Zen transforms our life here and now.