The Japanese also follow Zen, a school of Buddhism of the Mahayana branch that initially emerged in China. Zen focuses on seated meditation, known as zazen, as well as the usage of koan (riddles or puzzles) to assist followers in achieving enlightenment. Further, Zen instructs that enlightenment could be gained by perceiving the true nature of things, without the barriers created by the ego. Our egos often generate our material desires, inducing us to pursue the incessant gaining of material things; despite our efforts, genuine happiness continues to elude us. However, minimalism enables us to remove the clutter in our lives so that we can focus on the aspects and issues that truly matter.