Credit: Wellcome Library, London. Wellcome Images images@wellcome.ac.uk -{R|http://wellcomeimages.org}- Woodcut illustration of the practice known as 'The infant takes form and appears' from Xingming guizhi (Pointers on Spiritual Nature and Bodily Life) by Yi Zhenren, a Daoist text on internal alchemy published in 1615 (3rd year of the Wanli reign period of Ming dynasty).

'The infant takes form and appears' (yin'er xianxing) is a term from Daoist internal alchemy. The Infant (yin'er) is the essence of the kidney. Zhenji, in Pointers on Spiritual Nature and Bodily Life, states: If the cooking time has already been sufficient, and the Sacred Embryo is already rounded, provided the cooking is thoroughly done, the infant will be born. When the ten-month term is accomplished, it will separate from the placenta. Exegetes call this the practice of the body, or the filling of the mysterious portal; it is called the newborn (chizi) or the infant. When the infant moves the embryo and changes the cauldron, it suddenly emerges to dwells secretly in the Qi Cavern.

Woodcut

Library of Zhongguo zhongyi yanjiu yuan (China Academy of Traditional Chinese Medicine)

Xingming guizhi (Pointers on Spiritual Nature and Bodily Life) Yi Zhenren (Daoist adept Yi) Published: 1615