What does the wind do in the alchemist?

A battle takes place during Santiago’s and the alchemist’s first day at the camp. Santiago finds the Alchemist feeding his falcon and tells him he has no idea how to turn into the wind. He asks why the alchemist doesn’t seem worried since if Santiago doesn’t turn into the wind, they will both die. The alchemist says he already knows how to turn himself into the wind.

looks alright to me