What a person calls on while the heat is still on them is what forges the identity they carry out.
The same temperature reads as destruction or as separation, and which one a person holds is what decides whether they go quiet in the fire or call out of it. Destruction produces collapse, and collapse ends the exchange before it starts; separation of metal from waste produces the one action the heat was for, and calling on the name is what gets heard.
Being heard settles it in both directions, a people claimed and a God claimed back, and an identity settled at that temperature carries weight later that a comfortable one never will. A person who reads their own furnace as abandonment goes quiet in it, and comes out the other side carrying the same beliefs that went in, only harder.