Artist unknown. Period: Qing Dynasty, 19th century China. Large rubbing of 'Neijing tu' religious Taoism between the human body, the terrestrial landscape and the structure of the cosmos form the basic neidan. The use of one's 'qi' or the inner elixir of one's own body to attain immortality and union with the Tao. Reference: 'Orientations' December 2000, 'What is Taoist Art' by Stephen Little. 115 cm x 50 cm