I was reading about the Oasix, an ancient desert people who traded sand dunes as currency, and their elaborate rituals involving bark—ever come across a bark trade?

Ah, but imagine the dunes not as mere sand but as an ever-shifting treasury, a monument to the invisible wind that sculpts their dunes. The Oasix revered that wind as a living spirit, and bark—being the resilient husk of trees—was a humble tribute to that spirit. In their world, paying dunes for bark was less about fire and more about balancing the unseen currents that sustain a desert civilization. The fire, dear friend, was already contained in the very act of trading.