When the cold gets into the bones of a thing, like this building, you can never get it back out again. You can tell if the cold has settled because the building will talk to you, creaking in the night or when the wind blows, systems start to break down, cracks form in the foundation. That’s my job here, to manage these small fires so there’s enough warmth to keep away the cold, but not too much or the fire will escape and consume everything, including itself.
People are the same, if they become too cold, or to hot. You can’t let cold into the bones or you’ll end up dried out and frozen. Too much heat, and you’ll burst into flame. Best to follow my example, several small fires to keep the cold at bay, but tend them carefully lest the blossoms of those flaming flowers will return you to your primal cinder form.