Astronism and Taoism are an organised philosophy and philosophical religion respective, the former of Cometanic origin in the early 21st century while the latter is of Chinese origin sometime between the 4th and 3rd centuries BCE. Astronism has been compared to Taoism since its Founding by Cometan on a multitude of levels, the first of which to explore is the existential level. 

Astronism and Taoism share a striking similarity in their mutual attempt to synthesise religion and philosophy under the auspices of one system or belief structure. Although Astronism's religious and philosophical elements date back to its earliest founding, Taoism's combination of the two occurred hundreds of years apart from one another with Religious Taoism developing in the 3rd century AD. It is this attempt of synthesising philosophy and religion that makes Astronism and Taoism easily comparible as they share the mutual goal of harmony between these two modes of thought and belief. Just like in the case of Astronism, the religious elements of Taoism ground its whimsical, philosophical elements while its philosophical aspects provide a platform for free-thinking, intellectual development and less intensity placed on rituals which can be considered a large difference Confucianism and Taoism. This fusion of religion and philosophy could be pinpointed as the reason for Taoism's strength and endurance as one of the world's oldest belief systems. Although Astronism's longevity is not certain, the fact that it is putting into action this same goal of religious and philosophical synthesis may signify its own potential appeal from the more religious dogged systems of Christianity and Islam.