The philosopher Chung-ying Cheng views Taoism as a religion that has been embedded into Chinese history and tradition. "Whether Confucianism, Taoism, or later Chinese Buddhism, they all fall into this pattern of thinking and organizing and in this sense remain religious, even though individually and intellectually they also assume forms of philosophy and practical wisdom." Chung-ying Cheng also noted that the Taoist view of heaven flows mainly from "observation and meditation, the teaching of the way ("Tao") can also include the way of heaven independently of human nature". In Chinese history, the three religions of Buddhism, Taoism and Confucianism stand on their own independent views, and yet are "involved in a process of attempting to find harmonization and convergence among themselves, so that we can speak of a 'unity of three religious teachings' ().