Yin Shi is a philosophy and martial art practiced in Qaelin. It focuses on mindful meditation, on living in the present, on sensing rather than thinking, on existing rather than doing. Yin Shi adherents believe that through full awareness of one's body and surroundings, and through observance of thoughts as separate from the soul, one can achieve both inner peace and mastery of various aspects of life. Yin Shi swordsmen often spend years practicing meditation before they're allowed to lift a blade.