Air
It determines the shape of clouds and of sand dunes. It decides how the windmills turn, where the blades of grass point. It disappears into open portals, finds its way to the other side. A thief that misplaces things, a mischief-maker that hides in ostensibly empty spaces.
The chill on your skin, the bounce in your hair. The path of a tumbleweed, and the music in bamboo shoots.
Breeze. Wind. Air.