ash

Ash is like the soft, gray dust that comes from a campfire after the wood has burned away. Imagine the campfire is like a birthday candle; when the candle burns, it leaves behind a little bit of melted wax. Ash is like the leftover wax but for wood. It’s what remains when fire has eaten up all the wood, turning it into a powdery substance.
Picture ash as the crumbs left behind after eating a cookie. When a fire burns, it gobbles up the wood like you eat a cookie, and just like crumbs, ash is what’s left behind. These crumbs of ash can be carried away by the wind, just like how a gentle breeze can blow cookie crumbs off a table.
Think of ash as the footprints of a fire. Just as footprints show where someone has walked, ash shows where a fire once burned. It’s a reminder that something was there before, like how footprints in the sand show someone was walking on the beach. Ash tells us a story of a fire that once was, but now is gone.