One way to interpret the Dao is to view it not as a metaphysic, but as a relationship.
What I mean is, that the Dao refers to our relationship with reality, and not to reality itself.
There is no such thing as the Dao. That is, the Dao does not exist, it’s simply refers to our relationship with Nature.
This allow Daoism to be compatible with naturalism.
Naturalism tells us that nature is all there is, Daoism (Taoism) tells us that we need to flow with what is.
The Dao describes our relationship with Nature as one of flowing with the flux and rhythms of the Universe.
The yin and yang are the dualities that form part of the one whole. The Universe is a unity of diversities.