" A good basic character should be developed even before discussing enlightenment or the growth of your soul. That’s why Zen initiates developed their basic character traits through nine years of study—three years of cleaning, three years of firewood collecting and cutting, and three years of cooking. Teachings on the Tao were transmitted only to those who had successfully cultivated such character in themselves. "

― Ilchi Lee , Living Tao: Timeless Principles for Everyday Enlightenment