Qigong (which dates back as far as 200 AD), it cultivates the qi (also spelled chi) the internal energy that flows through the body, by combining movement and breathing.
Tai Chi is also
Yin and Yang, defined as “seemingly opposite or contrary forces that are actually linked and complementary to one another”.
Tai Chi in the Western world is typically practised for its health benefits.
It’s a physical practice, it’s also great for the mind—you’re calm and grounded, but not to the disengaged level you may be in meditation, where you may not be aware of your surroundings.
In Tai chi, you’re both present and relaxed all at once.
In essence, you’re getting the best of both worlds.