2a. Space

Being and non-being create each other
Difficult and easy support each other
Long and short define each other
High and low depend on each other
Before and after follow each other

tao Chap. 2

Flying is the intimate confrontation with itself of an opposition between contraries, neither of which, though irreconcilable, has coherence except in the context that opposes them one to the other.

flying Chap. 27

A. Swimming does not temporarily negate the existence of sky

Space, within and without itself, is merely the intimate confrontation itself within itself, and relates only to itself, thusly, it can be dismissed,