Bodhidarma's Exercizes

In a previous post I was writing :

Proper meditation practice should incorporate exercises promoting Blood and Chi circulation, while at the same time harmonizing the Shen. (Japanese Shin / Heart-Mind)

Conversely, proper Martial Art practice should incorporate Spiritual discipline to avoid mindless emphasis on Physical accomplishment - but this is an other story...

Is is said that after Bodhidharma died, a traveler met him in the mountains, and informed the monks of the Shaolin Monastery about this.

When they opened his tomb, they did not find him, but instead found a sealed box containing 2 sutras : Yi Jin Jing, and Xi Sui Jing.
Jing, 經 sometimes written Ching, is a book on a subject of great cultural of importance, a classic, Buddhist Sutra qualify as Jing. The great Chinese classics are the I Ching and Tao Te Ching.

Yi Jin Jing is about strengthening tendons and muscles;
Xi Sui Jing aims at cleaning up the bone marrow - and brain.

These exercises correspond to the 2 complementary goals above.