Introduction to Taiji Ruler - Excerpt video Added: Feb 2021 | Last update: Mar 2021 The fourth in my Taijiquan Foundations video series, this video presents an introduction to practice of the Taiji (Tai Chi) Ruler. The full video, 1 hour, 5 minutes in duration, is available for purchase at charlestauber.com/taijiquanfoundations. Tags: tai chi Ruler tai chi ruler Taiji Ruler qigong