From ‘Kundalini Diary. A Visual Journey in Meditation’ by Santosh Sachdeva

Rocks in Chinese thought are supposed to be full of Chi, the vital breath or Prana. They are living entities in thei own right; a rock is deemed capable of dying when the Chi leaves it. A powerful rock may even become a sacred spot or a personal mentor, its energies being conducive to the development of psychic and intuitive abilities. Rocks have such a transcendent aspect to them, an impact on the surrounding environment far in excess of their physical limits, that they are called Yun Ken, the ‘roots of the clouds’, and they form the framework for heaven and earth.