Tai Chi lesson with Thames water workers

The video tutorial covers a series of martial arts movements, starting with basic techniques like making a fist and turning reflect down. It progresses to intermediate moves such as parting the horse's mane and white crane rules. Advanced techniques include finding needles at the sea floor and executing a 180-degree turn with a punch. The tutorial concludes with final positions and a practice session to reinforce learning.

Explain the significance of 'Black down. I'm not going to do that.'

What does 'Hands to heaven reversed' imply in the context of the movements?