Final answer:
The unifying themes within Daoism are simplicity and harmony. Daoism emphasizes living in accordance with the natural way of the universe and all things, known as the dao.
Step-by-step explanation:
The unifying themes within Daoism are simplicity and harmony. Daoism emphasizes a naturalistic view of the underlying basis for morality and goodness, focusing on living in accordance with the natural way of the universe and all things, known as the dao. This involves embracing simplicity, eliminating desires and greed, and finding harmony with the natural flow of existence.