Its most important explanatory ideas can be found in the "Inner Volumes" of Zhuangzi, describe how the things of the world, including the human body, all arise from the cycle of birth and destruction, and are determined by natural causes.
以莊子內篇來看，其中主要透露的觀點是：世間萬物，包括人的身體在內，各自由生存到破滅中間的演變，都有自身的規律。