In the second two images from the Daoist Canon of 1436–49. we see the organs visualised as birds. There are also animals in other images of this set. This is a development of the animals that appear in Li Jiong’s Neijing tu 内景圖 (Chart of the Inner Landscape, (1269)). The individual functions of the organs were characterised by animal spirits, which through their natures expressed a delicate relationship between organic function and states of emotion. The emotions were rooted in the organs. Here we see the Spirit of the Spleen, Feng 風: The Phoenix; and similarly the Spirit of the Heart, Zhu Que 朱雀: the Vermilion Bird. The Spirit of the Heart, for example, was restless and vulnerable to attacks.