The supreme goal of meditation in Buddhism is to reach the state of non-ego–non-self, liberation, and enter Nirvana. Through meditation, the Buddha became a Perfectly Enlightened One. Meditation concentrates our minds, making them calm, mindful, and free of delusions. It especially helps destroy our egos and ignorance to attain liberation and enlightenment. This training material is based on the Four Foundations of Mindfulness of Theravada Buddhism, in which the ultimate end is the state of non-self. Zen instructors must strictly follow the order of this material to help new practitioners.