In another story, an insect that lived only during the summer had no understanding of what autumn meant. A frog in a well had no idea of what the ocean looked like.
Zhunangzi uses a kind of “perspectival relativism.” He sees different positions as each having some value, but in this way it is hard to determine an ultimate objective truth.
In the Zhuangzi, Zhuangzi the philosopher often starts out by doubting a particular position.