It’s like this, Fëanáro doesn’t know how to do anything but burn and he will take the world with him if it means protecting what he has left. Fëanáro will set fire to the heights of the Iron Mountains and watch them burn until they are naught but cinders. Fëanáro will burn, and the world will burn with him. (Swear it, he tells his children, his legs already turned to flame, a light to rival the Trees in his eyes.
Swear it.)
It’s like this, Ñolofinwë has always been bright. Has shone with starlight even as a child. But stars are made of fire too and he burns just as his brother does. His light is a beacon for others to follow and when he burns out it’s with the power of a supernova. ( Ñolofinwë dies with stars in his eyes and without fear. If this haunts Morgoth, who can say?)
It’s like this, Arafinwë tries to be cold, to turn the heat of fire in him to winter ice. He tries to bury his fire underneath masks of polite dignity but even masks crack. Arafinwë is harsh summer storms and lightning cracking through the sky. He is deadly as his brothers, the only thing setting them apart being Arafinwë’s control. (When his brothers die, a storm will be unleashed, powerful enough to shake the earth and rattle the heavens.)