Fire is in the centre of our planet Earth. Thanks to the moving magma we have continental drift, volcanic eruptions, hot water in some places of the ocean that makes oases of life. Thanks to the heat, there is a pressure in the Earth, and it tends to move things.
We have lightning coming from the sky. This fire can be cruel, sudden, the death of a tree and his residents in a fraction of a second. But this cruelty providies food for bugs and fungi, they turn the place in a more fertile spot. It is cleansing, refreshing, like the birth of a phoenix.
Fire is the only element we humans can
create ourselves - we discovered how to do it about 500.000 years ago. Since then, life was more comfortable - we could heat our cave's, heat our food, our whole digestive system adapted. We were able to preserve our foods by smoking it. And it is still important in our homes nowadays. Fire extends our days, now we don't have to go to sleep when the sun sets, we can put more activities in one day.
Fire is magnetic, if you sit by a campfire you can't help but stare at the bright yellows, oranges and blues. The sparks swirl around, like the stars in the sky.
Not exactly an answer to your question... But it is just what I think of when I think of actual fire existing on earth