Somewhere in the multiverse lurks your Feared Self.
They are worse than you in every way. You have spent your entire life trying to tear yourself away from them. They cling to you, moaning and slobbering. Just being near them degrades you; physically, mentally, spiritually, ethically.
At the opposite point in the cosmos is your Desired Self.
They are the perfect representation of beauty and truth. They have thrown away fear, sloth and shame. They're achieving all their hopes and dreams. There's only one thing left to do: Kill their feared self. You.
This chain echoes to infinity. Your Ideal Self is the Hated Self of some purer Ideal Self, which has its own Desired Self. Your infinite selves hunt each other eternally.