Canticle is a dragon or other powerful being’s egg. The entire planet is an evenly rotating massive investiture sink. I can easily seeing that being a major part of the development of a dragon, both heating and sustaining the embryo. The hostility of the planet is also likely in part a defense mechanism.
Interesting idea. I wonder what the Sun is then? Since that’s where the investiture is seeming to come from.
I also wonder why there isn’t any area on the ground that is in sunlight but not the full scale, investiture-fueled firestorm. Nomad experienced it at the peak of the mountain, but that same phenomenon had to exist elsewhere on the planet, wouldn’t it? Maybe the smallness of the planet is the reason for that but it just got me thinking.