Taoism focuses on learning, cultivating and practicing. Originated from Xuanyuan Huangdi, it is an inherent religion of China people. Taoism is called Taoism because its basic belief is "Tao". Laozi is regarded as the main classic of Tao Te Ching. Taoism believes that Tao is "the system of nothingness, the root of nature, the foundation of gods, and the yuan of heaven and earth", and "everything is born from this, and the five elements are all formed from this", that is to say, the universe, yin and yang, and everything are born from this.