I...knew what you meant. All this stuff was discovered way back before Aeson was even in the game, except as a reference.
Basically, you and Aeson share two halves of a soul. When you guys reach maturity, his body gives all of its power to you, and you live for a little while, before your mortal coils are destroyed by the incomprehensible power of being Existence Itself.
Without the Bestower's half of the soul, they die, giving the Bearer the full soul. The Bearer might last a few years, but their body can't handle the power.
The Essence is doomed to short lives.
This is why it doesn't matter what "godly" power you have. It never manifests, because you are more powerful. Aeson will never manifest that power, because he will die. You will never manifest that power, because you become a being of incomprehensible power. Piddly demigod powers mean nothing to you.
Caveat to this: if either the Bestower or Bearer dies before the Transfer, both of them die. They cannot live without the full soul.