Chin to toe

[windwalker099]

For some teachers, there are specific requirements one must meet before they agree to teach.
The chin-to-toe touch was one such requirement.

After completing "Chin to Toe" in 100 days Kuo was taught the Guang Ping Yang tai chi by the 100-year-old master Wang Jiao-yu.

Highlights the Science Behind It
Might offer some perspective on why a teacher might use this as a requirement before teaching.