Compounds The one pillar is water, which is composed of what is close to the earth because it is cold and wet, so it did not have the power to ascend, so it remained on the earth holding it with the dryness on it, and the other is fire, which is more dense than the ether, which is close to the sky because it is hot and dry, so it did not have the nature of descending to the earth, so it remained from what is close to the sky. Because of its heat and the dryness it held it there, and what happened between the fire and the water was the formation of the air from the heat of the fire and the moisture of the water, so it could not touch the fire, for the weight of the moisture prevented it from being at the level of the fire, and if it sought moisture, it would bring it down until it was at a level like the water, and the heat would prevent it from descending. When they prevented, all that remained was that It is between water and fire because they attract each other equally, so that