"His only dream now is of oblivion.
He has been called the Ghost of Sparta. He has been called the Fist of Ares and the Champion of Athena. He has been called a warrior. A murderer. A monster.
He is all of these things. And none of them.
His name is Kratos, and he knows who the real monsters are."
If you're comfortable with that, then the rest won't feel like a grueling Olympic event.