Immortal Being

I reside within this boundless domain,
With neither walls nor deathly bane.
I arise in tall, smooth shapes,
Enduring e'en as flame's maw gapes.
I traverse those hungry beasts,
Sating flame with hearty feast.
I behold all unspeaking,
With this vast arrogance of a king.
Neither mortal cold nor hellfire's flame will end me,
For I ascend once more as you pass by, Death, my enemy.