I've always said that tai chi is the physical practice of applied Daoism, a sort of kinesthetic philosophy.
Most people think of tai chi as forms, but it also includes a partner exercise called push hands.
Push hands has different variations, some of which are more competitive than others.
This video shows a tournament-style push hands match, which does a good job of illustrating many of the principles of Daoism and of tai chi, the martial art that's based on it, such as yin/yang balance, adaptation, and non-resistance.
What do you notice when you watch this video, and what Daoist principles can you see on display? I'll put my observations in the comments.