Bahamut is residing in the Crystal hiding in Eos' heart But too much light can be very much a bad thing. Too much Light can blind even an Astral, especially if given a couple of millennia to work.
What I'm saying is that maybe Bahamut can no longer see as clearly as he used to, especially over large distances (Niflheim) or into places that are somehow in conflict with his domain (underwater, underground, lately even dense forests)
What I'm saying is Eos blinded the son born of her own blindness, the son born of the blood of her sacrifice.
Once upon a time long forgotten Bahamut's domain was blood and sacrifice. Blood willingly spilled for others and sacrifices made out of love and compassion. The embodiment of the most powerful act their own mother had ever done.
Once upon a time long forgotten mothers used to worship Bahamut. The blood and sacrifices given by mothers to their children was what Bamahut was once known for. Before he sharpened his wings into blades and encased his body in armour. Before the cruelty and the betrayal.
Once upon a time long forgotten a man went to battle. Men before him had gone to battle - to a long eries of battles that had yet to receive the name of 'war'. But this man was different. His blood was spilled and he sacrificed the wholeness of his body in the name of protection and justice. Blood and sacrifice was given - and Bahamut answered.
Believes shift, religions transform. And once upon a time long forgotten Bahamut picked up a sword and the world changed.
Once, a mother loved her child. The embodiment of her most selfless act. She loved her child so much she did not see the beginnings of the downward spiral that would change the world forever.
Once Eos loved Bahamut, her favoured child. Once, Eos could not conceive of a world where blood and sacrifice would turn to war and betrayal. But it did.
Once Bahamut knew what a mother would do for her children. Blood and sacrifice. Once they knew, but started to forget when they first picked up a sword. It was a scrifice to their own altar in the name of power.
There was once a time Eos loved all her children. It was a knowledge Bahamut could not bear. Out of a man going to battle War was born. Out of a love poisoned by jealousy Betrayal was born.
War and Betrayal nearly caused the world to be swallowed by Sickness and Chaos, and demanded Blood and Sacrifice to right their own wrongs.
Once upon a time Bahamut grew blind to what a mother would do for her children. What Eos would do for all her children she loves. Her heart still beats and her light still shines, and Bahamut cannot look away. Unable to see the shadows hidden by the brilliant light.
