“The kidney belongs to the northern direction and the water”
“Its name is mystic darkness of the night”
“The kidney looks like egg-shaped stones”
“It governs and distributes water and qi, irrigating whole being”
“They are like roots of trees and plants”
“Selfhood born out of heaven and qi in it is known as Jing”
“Jing and qi circulate back and forth because of Shen”
“In the place of kidney there is black circular watch tower”