In the poem' Holding the Moon in the Hand, Making Flowers Full of Clothes', the physical knowledge contained is that "Holding the Moon in the Hand" is a reflection phenomenon of light (flat mirror imaging); "Scenting flowers all over the clothes" is the theory of molecular motion (molecules never stop doing random motion).

Sitting on the ground, traveling 8, miles a day, surveying the sky and looking at a thousand rivers in the distance reflect the rotation of the earth.